Here is a small confession that surprises almost everyone who hears it: you are, at this very moment, the owner of dozens of copyrights, and you have never filled out a single form. The grocery list on your counter, the photo you snapped of your dog this morning, the half-finished short story in a drawer, the doodle on the back of an envelope, the email you sent your sister — each of those is, in the eyes of federal law, an "original work of authorship fixed in a tangible medium of expression," and copyright sprang into existence the instant your pen lifted off the page or your finger left the shutter button. No registration. No notice. No lawyer. No fee. It just happened.

That automatic, almost magical quality is the single most misunderstood thing about copyright — and it generates a remarkable number of follow-up questions. If I already own it the moment I make it, why would I ever register? If I own the words I wrote, do I own the idea behind them? Can I quote someone else's book in mine? How long does any of this last? What about the photo someone reposted without asking, the song my band recorded, the website my company paid a contractor to build, or the screenplay my late uncle wrote that the family now wants to license?

This article is the hub — the front door. It collects the questions we hear most often at mclaw.io and answers them in plain English, with enough depth that a judge, a fellow lawyer, and a curious teenager can all follow along. Where a question deserves its own full treatment, we point you to a dedicated guide. Think of this as a map of the whole copyright country, with footpaths to the interesting towns. We will move from the big foundational questions (what is copyright, what does it cover) through the practical machinery (registration, fair use, the DMCA, infringement and its remedies) and out to the frontier topics (transfers, termination, the public domain, and international protection). Every legal term gets explained the first time it appears, and every legal assertion is tied to the statute, case, or government source behind it.

One quick orientation note before we dive in. United States copyright law lives mainly in Title 17 of the United States Code — the Copyright Act of 1976, which took effect January 1, 1978, plus the amendments piled on since. When you see a citation like "17 U.S.C. § 106," that is simply section 106 of that title. The agency that administers registration is the U.S. Copyright Office, a department of the Library of Congress, and its plain-language guidance pamphlets (called "Circulars") and its internal rulebook (the Compendium of U.S. Copyright Office Practices, Third Edition, usually shortened to "Compendium (Third)") are excellent, free, and authoritative. We will lean on all of them. Two dates are worth memorizing before you read another word, because nearly every hard question in copyright pivots on one of them: January 1, 1978 (the day the 1976 Act took over and split the duration rules into "old" and "new") and March 1, 1989 (the day the United States joined the Berne Convention and abolished the requirement of a copyright notice).

Part One: The Foundations

What is copyright, really?

Copyright is a bundle of exclusive legal rights that the law hands to the creator of an original work of authorship the moment that work is set down in some fixed form. The constitutional seed is Article I, Section 8, Clause 8 of the U.S. Constitution, which empowers Congress "to promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries." Notice the bargain baked into that sentence: the public grants authors a temporary monopoly, and in exchange authors are encouraged to create and eventually contribute their works to the cultural commons. Copyright is not a reward for genius and not a property right in the cosmic sense; it is, in the Supreme Court's words, a "limited grant" meant to be "a means by which an important public purpose may be achieved," Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417, 429 (1984).

The statutory heart is 17 U.S.C. § 102(a), which says copyright protection "subsists" in "original works of authorship fixed in any tangible medium of expression." Unpack that and you get the three magic ingredients every copyright requires:

  1. Originality. The work must originate with the author and possess at least a "modicum" of creativity. The bar is famously low — the Supreme Court in Feist Publications, Inc. v. Rural Telephone Service Co., 499 U.S. 340, 345 (1991), said even a "slight amount" will do — but it is not zero, and it is not about effort. Feist killed off the old "sweat of the brow" theory: no matter how much labor went into compiling a telephone book's white pages, an alphabetical list of names and numbers gathered by an obvious, mechanical method had no "spark" of creativity and so was not protectable. The same case teaches that a factual compilation can earn only a "thin" copyright in its original selection, coordination, and arrangement, not in the underlying facts.

  2. Work of authorship. It has to be something a human author made. Section 102(a) lists the categories: literary works (which, importantly, include computer software — see Apple Computer, Inc. v. Franklin Computer Corp., 714 F.2d 1240, 1249 (3d Cir. 1983), holding that source and object code are literary works), musical works, dramatic works, pantomimes and choreography, pictorial/graphic/sculptural works, motion pictures and audiovisual works, sound recordings, and architectural works. The list is illustrative, not exhaustive — but human authorship is essential. The Copyright Office will not register a work produced entirely by a non-human (a monkey, a machine, the weather), a position the Office has reaffirmed in the age of generative AI and one now being tested in court (see our coverage of AI-generated inventions and who owns what the machine creates).

  3. Fixation. The work must be captured in a "tangible medium" stable enough to be perceived, reproduced, or communicated "for a period of more than transitory duration," 17 U.S.C. § 101 (definition of "fixed"). Paper, canvas, a hard drive, a memory card, a tattoo, a film — all qualify. A live, unrecorded jazz improvisation does not, until someone presses record.

What does copyright protect — and what does it absolutely not?

This is the question that launches a thousand misunderstandings, so let us be precise. Copyright protects expression, not ideas, facts, systems, methods, or procedures. That principle, the "idea-expression dichotomy," is codified at 17 U.S.C. § 102(b): "In no case does copyright protection for an original work of authorship extend to any idea, procedure, process, system, method of operation, concept, principle, or discovery..."

The case every law student reads for this is Baker v. Selden, 101 U.S. 99 (1879), one of the oldest in the canon. Selden wrote a book explaining a novel bookkeeping system and included blank ledger forms to use it. A competitor copied the system and used similar forms. The Supreme Court held that while Selden's book (his explanation, his prose) was protected, the bookkeeping method itself was not, and neither were the forms necessary to practice it. Copyright cannot be used to monopolize an idea by the back door. The related "merger doctrine" makes the point sharper: when there is essentially only one way (or only a few ways) to express an idea, the idea and the expression "merge," and copyright protects neither — otherwise protecting the expression would lock up the idea. A close cousin, the "scènes à faire" doctrine, denies protection to stock elements that flow naturally from a setting or genre: the hard-drinking detective, the haunted house with a creaking door, the gun-slinging showdown at high noon.

So, concretely, copyright does not protect:

  • Ideas and concepts. You can copyright the novel you wrote about a boy wizard at a magic school; you cannot stop others from writing their own stories about boy wizards at magic schools.
  • Facts. History, scientific findings, sports scores, the population of Ohio. Facts are discovered, not authored (Feist).
  • Systems, methods, and processes. A workout routine, a card game's rules, a recipe-as-procedure. (Those may sometimes be patentable instead — see our plain-English patent guide.)
  • Names, titles, short phrases, and slogans. The Copyright Office is explicit about this in Circular 33. The name of your band, the title of your novel, a slogan like "Just Do It" — none are copyrightable, though they may be protectable as trademarks. (If you are weighing which regime applies, our explainer on copyright vs. trademark is built exactly for that.)
  • Useful articles, except for separable design. A chair, a dress, a lamp — the utilitarian shape of an everyday object is not copyrightable, though any pictorial, graphic, or sculptural feature that can be identified separately and would qualify on its own is protected. The Supreme Court rebuilt this "separability" test in Star Athletica, L.L.C. v. Varsity Brands, Inc., 580 U.S. 405 (2017) (the colorful designs on cheerleading uniforms could be protected even though the uniform itself could not). Where the line falls between protectable ornament and unprotectable function is also the battleground of design patents versus trade dress.
  • Government works. Works of the U.S. federal government — statutes, federal court opinions, agency reports — are not subject to copyright, 17 U.S.C. § 105.
  • Anything not fixed. The unrecorded improvisation, the spontaneous speech no one captured.

A useful worked example, entirely hypothetical. Suppose a cookbook author, Chef Marisol Vega, publishes Coastal Kitchen. The bare lists of ingredients ("2 cups flour, 1 egg...") are unprotected facts and procedures. But Marisol's witty headnotes, her plating photographs, the way she organizes and sequences the chapters, and her substantial explanatory prose — that expressive material is protected. A rival who copies her ingredient lists is fine; a rival who lifts her photos and her prose is in trouble. (The Copyright Office walks through exactly this recipe scenario in Circular 33.)

What are the "exclusive rights" copyright actually gives me?

When people say "I own the copyright," what they own is the set of exclusive rights listed in 17 U.S.C. § 106. The copyright owner — and, with limited exceptions, only the copyright owner — may:

  1. Reproduce the work (make copies);
  2. Prepare derivative works based on it (adaptations, translations, sequels, remixes);
  3. Distribute copies to the public (by sale, rental, lease, or lending);
  4. Publicly perform the work (for literary, musical, dramatic, choreographic works, and films);
  5. Publicly display the work (for most visual works); and
  6. Publicly perform a sound recording by means of a digital audio transmission (a narrower, digital-era right under § 106(6) and § 114 that matters enormously to streaming — see our deep dive on music licensing in the streaming era).

Think of these as a bundle of sticks. The owner can keep the whole bundle, hand over one stick (license just the right to reproduce, say), or sell the entire bundle outright; the Act expressly makes copyright "divisible" so that each right can be owned and enforced separately, 17 U.S.C. § 201(d). The line between rights is sometimes subtle but consequential: courts have held that an on-demand stream is a public performance while a download is a distribution, not a performance, United States v. ASCAP, 627 F.3d 64, 74–75 (2d Cir. 2010) — a distinction that drives who gets paid in the streaming economy. Visual artists also enjoy a narrow set of moral rights — attribution and integrity rights for certain works of "recognized stature" — under the Visual Artists Rights Act, 17 U.S.C. § 106A, but U.S. moral-rights protection is far thinner than what many other countries provide.

When does my work become protected? Do I have to do anything?

You do not have to do anything. Protection is automatic upon fixation — the instant the work is set down in tangible form. This has been true for works created on or after January 1, 1978, under the 1976 Act, and the rule got even friendlier when the U.S. joined the Berne Convention, effective March 1, 1989, which eliminated the old requirement of a copyright notice as a condition of protection.

So when a freelance photographer, call her Dana Okafor, takes a wedding photo, she owns the copyright in that image the moment the camera writes it to the memory card. She does not need to register it, mark it with a ©, mail it to herself, or notify anyone. All of those steps can be useful (we will get to why), but none is required for the copyright to exist.

Isn't there something called a "poor man's copyright"? Does mailing myself a copy work?

This myth refuses to die, so let us put a stake in it. A "poor man's copyright" is the practice of mailing a copy of your work to yourself in a sealed, postmarked envelope, on the theory that the postmark proves you had the work by that date. The U.S. Copyright Office is unambiguous: there is no provision in copyright law for any such protection, and it is not a substitute for registration. At best, a postmarked envelope is a weak, easily challenged piece of evidence about a creation date. It gives you none of the real legal benefits — the public record, the presumption of validity, the eligibility for statutory damages and attorney's fees — that registration provides. If a project matters enough to protect, register it with the Copyright Office. The fee is modest; the postage-and-prayer method is worthless.

How is copyright different from a patent or a trademark?

People mix these up constantly, and the consequences of mixing them up can be expensive, so here is the clean version. Copyright protects original creative expression — books, songs, code, photos, films. Patents protect inventions — new and useful machines, processes, compositions of matter, and ornamental designs — and you have to apply and be examined to get one (start with our general overview of patents or, for the lighter version, patent basics). Trademarks protect source identifiers — the brand names, logos, and slogans that tell consumers who made a product — and they can last forever as long as the mark stays in use (see trademark basics).

The three overlap more than you would think. A logo can be both a copyrighted artwork (if it has enough creative authorship) and a registered trademark. A product's packaging can carry copyrighted graphics and protectable trade dress. A character like a famous cartoon mouse can be protected by copyright (the drawings, the films) and by trademark (as a brand) — which is precisely why a character can slip into the public domain for copyright purposes while the studio still polices it as a trademark. Software is the ultimate example of overlapping regimes: the same program can be guarded by copyright, patent, trade secret, and contract all at once, a layering we untangle in legal protection of software. Our side-by-side explainer, copyright vs. trademark: what is the difference, is the place to sort out which tool fits your situation, and if you are wrestling with a name specifically, see trademarking your own name.

Part Two: Registration — The Voluntary Step You Probably Want to Take

If protection is automatic, why register at all?

Because registration unlocks benefits that the automatic copyright alone does not — and one of them is a flat prerequisite to enforcing your rights in court. Registration is voluntary in the sense that your work is protected without it. But the practical leverage of copyright lives almost entirely on the registered side of the line. Here is what registration buys you:

  • The ability to sue. Under 17 U.S.C. § 411(a), you generally cannot file a copyright-infringement lawsuit for a U.S. work until registration has been completed. For years courts split over whether merely applying was enough; the Supreme Court settled it in Fourth Estate Public Benefit Corp. v. Wall-Street.com, LLC, 586 U.S. 296 (2019), holding that "registration occurs, and a copyright claimant may commence an infringement suit, when the Copyright Office registers a copyright" — not when the application is filed. (If the Office refuses registration, you may still sue, but you must serve the Register of Copyrights with notice of the suit, § 411(a).) Note that § 411(a) is a claim-processing prerequisite, not a limit on the court's power — the Supreme Court held in Reed Elsevier, Inc. v. Muchnick, 559 U.S. 154 (2010), that it is non-jurisdictional. The bottom line is practical: you usually have to wait for the certificate before you can walk into court, which is exactly why savvy creators register early instead of scrambling after they have been infringed.

  • Statutory damages and attorney's fees. This is the big one. Under 17 U.S.C. § 412, you can recover statutory damages (a fixed range set by law, no need to prove actual losses) and attorney's fees only if you registered before the infringement began, or within three months of first publication. Statutory damages run from $750 to $30,000 per work, and up to $150,000 per work for willful infringement, 17 U.S.C. § 504(c). Miss the § 412 window and you are limited to actual damages and the infringer's profits — often hard to prove and frequently far smaller. We unpack the numbers in what are the consequences of pirating intellectual property.

  • A presumption of validity. A registration made before or within five years of first publication is prima facie evidence of the copyright's validity and of the facts stated in the certificate, 17 U.S.C. § 410(c). That shifts the burden onto your opponent to disprove what your certificate asserts — a meaningful head start in litigation.

  • A public record of your claim, which helps licensees find you, plus the ability to record your registration with U.S. Customs and Border Protection under 19 C.F.R. § 133.31 to intercept infringing imports.

For the full play-by-play, see our master guide, copyright registration: a comprehensive guide, and the step-by-step walkthrough, how to register a copyright with the U.S. Copyright Office.

How do I actually register? What does it cost and how long does it take?

You register through the Copyright Office's online system, the electronic Copyright Office (eCO). The process has three parts: (1) complete the online application, (2) pay the filing fee, and (3) submit a deposit — a copy or copies of the work. (Current fee schedules live in the Office's Circular 4 and 37 C.F.R. § 201.3; online single-author/single-work registrations carry the lowest fee, with higher fees for standard and paper applications.) You can pay by credit card, ACH bank transfer, or a Copyright Office deposit account. One technical but important rule: the effective date of registration is the day the Office receives a complete submission — acceptable application, proper deposit, and correct fee, 17 U.S.C. § 410(d) — so a missing piece pushes the date forward, which can matter for the § 412 window.

Processing time varies with the Office's backlog and whether your application raises any questions, generally running several months and sometimes considerably longer; the Office publishes current processing times on its website. If you need a certificate fast — say, litigation is looming, or a customs or contract deadline is bearing down — the Office offers special handling (expedited processing) for an additional fee, but it is reserved for those limited circumstances.

A practical tip drawn from the Office's own rules: generally you register one work per application, but several exceptions let you register multiple works together (group registrations under 37 C.F.R. § 202.4 for things like unpublished collections, serials, photographs, and short online literary works), each with its own strict eligibility requirements. Circular 34 explains the multiple-works options. Choosing the right application type matters; the wrong one can mean a refusal or a costly delay. Be candid on the form, too: the Office takes your factual statements at face value and does not search for prior registrations, but a knowing false statement in an application is a federal crime punishable by a fine of up to $2,500, 17 U.S.C. § 506(e).

Which application or form do I use?

Online filing through eCO is the preferred route for basic claims, and the system guides you to the right category. If you are looking at the old paper forms, the shorthand is: Form TX for literary works (books, articles, software), Form VA for visual arts (photos, art, logos), Form PA for performing arts (music compositions, scripts, choreography), and Form SR for sound recordings. Different work types have their own quirks and dedicated guides on mclaw.io:

If you later need to fix or amplify a registration, you file a supplementary registration (paper Form CA), which gets its own number and date but does not cancel or replace the original — and it cannot be used to record a transfer of ownership or to attack the validity of the basic registration.

Do I have to send in my actual work? Will I get it back?

You must submit the required deposit copy or copies, and no, you do not get them back — under sections 407 and 408 of the Act, deposited copies become the property of the U.S. government and may go into the Library of Congress's collections. If you register online you can usually upload an electronic copy. But beware: even for online registrations, if the Library requires a hard-copy deposit, you must mail the "best edition" of the work — the highest-quality published version, as defined in the Office's Circular 7b. A separate mandatory deposit requirement (Circular 7d; § 407) applies to most works published in the United States — generally two copies of the best edition within three months of publication — independent of registration, and it is enforced even if you never register at all.

Can I register something I did not create — like a diary I found in my grandmother's attic?

Only if you actually own the rights. Copyright belongs to the author (or the author's heirs, or someone the author validly transferred rights to) — not to whoever happens to possess the physical object. Owning the diary the way you own the dusty trunk it sat in does not make you the copyright owner; the Act draws a sharp line between the copyright and the "material object" in which it is embodied, 17 U.S.C. § 202 (more on that below). If your grandmother wrote it and you inherited her estate, you may well own the copyright by will or intestate succession, and then you can register. If you simply found it, you own a fascinating artifact and nothing more. This author-versus-object distinction is fundamental, and it has real estate-planning consequences — explored in who will inherit your intellectual property.

Will my personal information become public when I register?

Yes. A copyright registration is a public record, available on the internet through the Office's online catalog. The information you put on the application — including, often, your name and address — is searchable by anyone, which is partly the point (it helps people find you to license the work) but can be uncomfortable. Two practical responses: consider using a business address or P.O. box instead of your home address, and know that the Office will, on request, remove certain extraneous personally identifiable information (driver's license numbers, Social Security numbers, banking details) and can, under defined circumstances, redact a home address or personal phone number from the public-facing catalog while retaining it in offline records. One related nuisance: because the records are public, you may start receiving solicitation letters from publishers and registries who scrape the new-registration lists. The Office does not sell your data; these solicitors simply mine the public record, which is lawful but annoying.

What is "preregistration," and do I need it?

Preregistration is a niche tool, created under the 2005 Artists' Rights and Theft Prevention Act, for works that have a documented history of being infringed before their commercial release — the kind that get leaked. It is available only for specific classes (37 C.F.R. § 202.16): motion pictures, sound recordings, musical compositions, literary works being prepared for book publication, computer programs (including video games), and advertising or marketing photographs. It lets the owner of an as-yet-unfinished, unpublished work that is genuinely headed for commercial distribution establish an early hook to sue a pre-release pirate. But it is emphatically not a substitute for registration. If you preregister, you must follow up with a full registration by the earlier of three months after first publication or one month after learning of an infringement; miss that window and a court must dismiss certain infringement claims, 17 U.S.C. §§ 408(f), 411. For the overwhelming majority of creators, ordinary registration is the right tool and preregistration is irrelevant.

Part Three: How Long Does Copyright Last?

What is the basic duration?

For works created on or after January 1, 1978, the rule is elegantly simple to state and surprisingly long: copyright lasts for the life of the author plus 70 years, 17 U.S.C. § 302(a). If there are joint authors, the clock runs from the death of the last surviving author, § 302(b). For works made for hire, and for anonymous and pseudonymous works, the term is the earlier of 95 years from first publication or 120 years from creation, 17 U.S.C. § 302(c). And handily, all terms under the 1976 Act run to December 31 of the expiration year, § 305 — so you never have to track an anniversary date for a modern work.

The "life plus 70" figure is itself a product of the Sonny Bono Copyright Term Extension Act of 1998, which added 20 years to existing terms. That extension was challenged as exceeding Congress's "limited Times" power and as a First Amendment problem, and the Supreme Court upheld it in Eldred v. Ashcroft, 537 U.S. 186 (2003), reasoning that setting term length is squarely within Congress's discretion.

What about older works? How do I tell if something is in the public domain?

Older works are where duration gets genuinely tricky, because the rules changed several times and because the 1909 Act measured terms from the date of publication or registration rather than from December 31 of the expiration year — a small difference that can move a date by months. The 1909 Act used a two-term system: an initial 28-year term plus a renewal term, and a work could fall into the public domain (the realm of works free for anyone to use) if the owner forgot to file the renewal — the infamous "renewal trap." Later amendments lengthened the renewal term (eventually to 67 years, for a maximum 95-year term) and, for works first published between 1964 and 1977, made renewal automatic, so the renewal trap snapped shut only on works secured before 1964. The upshot in 2026: as a rule of thumb, works published in the United States before 1930 are in the public domain, and each January 1 another year's worth crosses over (a date copyright watchers celebrate as "Public Domain Day"). Works from 1930 onward require a more careful analysis that turns on publication date, notice, and renewal — genuinely a flowchart exercise rather than a one-liner.

Two further wrinkles worth flagging. First, some foreign works that had fallen into the U.S. public domain were restored to copyright by the Uruguay Round Agreements Act (URAA), codified at 17 U.S.C. § 104A — a move the Supreme Court upheld in Golan v. Holder, 565 U.S. 302 (2012). Second, two categories sit outside the ordinary flowchart and need separate treatment: sound recordings fixed before February 15, 1972, which were brought into federal protection by the Music Modernization Act's Classics Protection and Access Act, 17 U.S.C. § 1401 (generally 95 years from publication, plus a transition period); and buildings constructed from architectural plans created before December 1, 1990, which fall outside the architectural-works regime entirely. We built a full walkthrough in renewal of copyright, and the duration question generally is covered in our comprehensive registration guide. When real money rides on whether a work is free to use, get the analysis done carefully — the difference between "public domain" and "still protected" is the difference between free and a lawsuit.

Part Four: The Copyright Notice

Do I still need to put a © on my work?

You are not required to, for any work published on or after March 1, 1989 — the day U.S. adherence to the Berne Convention took effect and eliminated mandatory notice. But putting a notice on your work is still smart, and the law rewards it. A proper notice has three elements: the symbol © (or the word "Copyright," or the abbreviation "Copr."), the year of first publication, and the name of the copyright owner — for example, "© 2026 Acme Corp." Sound recordings use a ℗ (the letter P in a circle) instead.

Why bother if it is optional? Because a visible notice defeats a defense of "innocent infringement." Under 17 U.S.C. §§ 401(d) and 402(d), if a proper notice appeared on the copies the defendant had access to, the defendant cannot later plead ignorance to shrink the damages award. That matters: § 504(c) lets a court drop statutory damages as low as $200 per work for a genuinely innocent infringer, and a visible notice forecloses that argument. Notice also deters casual copying, identifies who to ask for permission, and signals professionalism. There is one historical trap: for works published before March 1, 1989 without the then-required notice, the omission could have injected the work into the public domain (subject to the 1976 Act's cure provisions in § 405 for the 1978–1989 window). That pre-1989 quirk is exactly why dating and notice analysis matter for older material. We cover all of this — placement, derivative-work notice, common mistakes — in copyright notice: form, function, and best practices.

Part Five: Fair Use — The Question Everyone Asks

Can I use someone else's copyrighted work without permission?

Sometimes — under the doctrine of fair use, which is the most important, most litigated, and most misunderstood limit on copyright. Fair use traces back to Folsom v. Marsh, 9 F. Cas. 342 (C.C.D. Mass. 1841) (Justice Story's "fair and reasonable criticism"), and it is now codified as an affirmative defense at 17 U.S.C. § 107: certain uses "for purposes such as criticism, comment, news reporting, teaching..., scholarship, or research" are not infringement. But — and this is crucial — those listed purposes are illustrative, not a safe-harbor checklist. The Supreme Court calls fair use "an equitable rule of reason," Sony, 464 U.S. at 448, and whether any given use is fair turns on a holistic weighing of four statutory factors:

  1. The purpose and character of the use, including whether it is commercial and whether it is "transformative" — meaning it adds new expression, meaning, or message rather than merely superseding the original;
  2. The nature of the copyrighted work (creative works get more protection than factual ones, and the fact that a work is unpublished leans against fair use, Harper & Row Publishers, Inc. v. Nation Enterprises, 471 U.S. 539, 564 (1985));
  3. The amount and substantiality of the portion used in relation to the whole (taking the "heart" of a work cuts against fair use even if it is quantitatively small — in Harper & Row, roughly 300 words from President Ford's memoir doomed the defense because those words were the most important in the book); and
  4. The effect of the use on the potential market for the original (does the new use substitute for, and thereby harm the market for, the original, including markets the owner might reasonably license?).

No single factor decides; courts weigh them together, and fair use is notoriously fact-specific — so much so that it rarely gets resolved on a motion to dismiss and usually demands at least a developed summary-judgment record. A few counterintuitive points are worth internalizing. Using an entire work can still be fair (the Supreme Court blessed home "time-shifting" of whole TV broadcasts in Sony). Conversely, taking a tiny but qualitatively crucial slice can defeat the defense. And fair use is the user's burden to prove — it is something you raise after you are sued, not a permission slip you grant yourself — although for genuinely noncommercial uses the presumption of market harm flips back toward the owner. One reassuring rule from Campbell v. Acuff-Rose Music, Inc., 510 U.S. 569, 585 n.18 (1994): asking for a license and being turned down does not weigh against your fair-use defense.

"Transformativeness" became the engine of modern fair-use analysis after Campbell, where the Court held that 2 Live Crew's parody of Roy Orbison's "Oh, Pretty Woman" could be fair use. But two recent Supreme Court cases reshaped the landscape and are worth knowing.

What did Google v. Oracle and Warhol v. Goldsmith change?

In Google LLC v. Oracle America, Inc., 593 U.S. 1 (2021), Google had copied roughly 11,500 lines of Java API "declaring code" to build the Android platform. The Supreme Court assumed (without deciding) that the code was copyrightable, then held Google's reuse was fair use — emphasizing that copying the interface to let programmers deploy their existing skills on a new platform was transformative and served copyright's pro-progress purpose. It is a landmark for software interoperability, and we connect it to coding practice in legal protection of software and registration of computer programs.

Then, in Andy Warhol Foundation for the Visual Arts, Inc. v. Goldsmith, 598 U.S. 508 (2023), the Court pumped the brakes on a too-easy "it looks different, so it's transformative" reading. Warhol had silkscreened a portrait based on Lynn Goldsmith's photograph of Prince; the Foundation later licensed the Warhol image to a magazine for a use that competed directly with the kind of license Goldsmith herself sold. The Court held that the first fair-use factor must be assessed in light of the specific use and its commercial purpose, and that where the new use shares the same purpose as the original (here, licensing an image of Prince to illustrate magazine articles) and is commercial, factor one favors the original author — even if the new work adds a new aesthetic. The takeaway: a new meaning or message is not, by itself, enough; courts now look hard at whether the challenged use substitutes for the original in the marketplace.

It helps to see the full spectrum. On the "fair" end sit uses that build something genuinely new or serve a different function: the mass digitization and snippet display in Authors Guild v. Google, Inc., 804 F.3d 202 (2d Cir. 2015), and the full-text search index in Authors Guild v. HathiTrust, 755 F.3d 87 (2d Cir. 2014); thumbnail image search in Perfect 10, Inc. v. Amazon.com, Inc., 508 F.3d 1146 (9th Cir. 2007); and intermediate copying to reverse-engineer for interoperability in Sega Enterprises Ltd. v. Accolade, Inc., 977 F.2d 1510 (9th Cir. 1992). On the "not fair" end sit uses that simply substitute for the original: systematically photocopying journal articles to avoid buying subscriptions, American Geophysical Union v. Texaco Inc., 60 F.3d 913 (2d Cir. 1994), and assembling and selling course-packs of copyrighted readings, Princeton University Press v. Michigan Document Services, Inc., 99 F.3d 1381 (6th Cir. 1996) (en banc).

For creators, the practical lesson is humility. Fair use is real and important — but it is genuinely unpredictable at the margins. And note that fair use is at the white-hot center of the current wave of copyright infringement claims against generative AI, where the question of whether training a model on copyrighted works is "transformative" — and whether the model's outputs substitute for the originals in the market — is being fought out right now.

Are there other exceptions besides fair use?

Yes — copyright law has a whole drawer of specific exemptions. There are special rules for libraries and archives (§ 108); for certain classroom and distance-education uses (§ 110 and the TEACH Act); the first-sale doctrine that lets you resell, lend, or give away a particular copy you lawfully own (§ 109 — it is why used bookstores, libraries, and video rental once existed); compulsory licenses for making cover versions of musical compositions (§ 115) and for noncommercial broadcasting (§ 118); a narrow privilege to copy and adapt a computer program you own as an essential step in using it (§ 117); and accessibility exemptions for people who are blind or print-disabled. These are narrow and technical, but they matter, and they are reminders that the © holder's rights, while broad, are not absolute. Note one limit on first sale: it lets you resell the physical copy, not reproduce it — so reselling your used novel is fine, but scanning it and emailing the file is not.

Part Six: The Internet, the DMCA, and Online Copyright

What is the DMCA and how does the takedown system work?

The Digital Millennium Copyright Act of 1998 (DMCA) is the law that makes the modern internet function without every platform being sued into oblivion. Its most important piece for everyday creators is the safe harbor in 17 U.S.C. § 512: online service providers (think YouTube, Instagram, web hosts) are shielded from monetary liability for infringing material their users post, provided the provider follows the rules — including registering a designated agent, adopting a repeat-infringer policy, and expeditiously removing infringing content when properly notified. (Even a provider that loses the safe harbor can still be subject to a narrow injunction under § 512(j).)

That is where the famous "DMCA takedown notice" comes in. If someone posts your copyrighted photo, video, or article without permission, you send the platform a § 512(c) notice identifying the work and the infringing material, and the platform takes it down. The person who posted it can fire back a counter-notice asserting the material was wrongly removed, after which the platform may restore it unless you file suit. Both sides have to act in good faith — knowingly false takedowns or counter-notices carry liability under § 512(f), and a sender must consider fair use before firing off a notice, per Lenz v. Universal Music Corp., 815 F.3d 1145 (9th Cir. 2016) (the "dancing baby" case, where a 29-second home video of a toddler dancing to a Prince song triggered a takedown the court found may have ignored fair use). We wrote the full how-to: how to file a DMCA takedown notice and respond to one.

A separate piece of the DMCA, the anti-circumvention rule of 17 U.S.C. § 1201, makes it unlawful to break the technological locks (DRM) that guard access to a work, or to traffic in tools designed to do so — a rule softened only by exemptions the Copyright Office grants every three years (the triennial rulemaking under 37 C.F.R. § 201.40, which has at various times allowed things like unlocking cell phones).

Can I copyright my website? My domain name?

Your website's content — the text, photos, graphics, videos, and code — can absolutely be protected by copyright, because each of those is a work of authorship. But there is no single "website" registration category; you register the components by type (and the constant-updating problem creates real wrinkles, which is why we built a dedicated guide on registering websites and website content). Your domain name, on the other hand, is not copyrightable — names are never protected by copyright. Domain names are administered by ICANN and its accredited registrars, and disputes over them run through trademark law and the UDRP process (see how to file a UDRP complaint for domain name disputes), not copyright. If your concern is brand protection online — scraped content, knockoff sites, social handles — start with brand protection online and our overview of social media law basics.

What about a recipe, an idea, or a name?

We touched on this above, but it bears repeating because these come up constantly. A bare recipe (ingredient list plus functional steps) is not copyrightable; the surrounding creative prose, photos, and a cookbook's selection and arrangement can be. A mere idea is never protected, only its fixed expression. A name, title, slogan, or short phrase is outside copyright entirely (Circular 33) — look to trademark instead. And a quirky favorite from the Copyright Office's own FAQ: you cannot copyright a star named after you, and you cannot copyright your sighting of Elvis — but you can copyright the original photograph you took of that sighting. Copyright protects the photograph, never the subject of the photograph. (Which means someone else who snaps their own Elvis photo has their own copyright, and you cannot stop them.)

Part Seven: Who Owns It — Authorship, Work Made for Hire, and Joint Works

I paid someone to create something. Do I own the copyright?

Maybe not — and this is one of the most expensive surprises in all of copyright. The default rule is that the author owns the copyright, 17 U.S.C. § 201(a), and "author" usually means the human who actually created the work. Paying for a work does not automatically make you the copyright owner. If you hire a freelance designer to make your logo, or a freelance writer to draft your white paper, the freelancer generally owns the copyright unless you have a written agreement that says otherwise. You may have a license to use what you paid for, but ownership is a different thing.

There are two main ways the hiring party can actually own the copyright:

  1. Work made for hire (WMFH). Under 17 U.S.C. § 101's two-part definition, a work is "made for hire" if it is (a) prepared by an employee within the scope of employment, or (b) specially ordered or commissioned for one of nine enumerated categories (a contribution to a collective work, a part of a motion picture or other audiovisual work, a translation, a supplementary work, a compilation, an instructional text, a test, answer material for a test, or an atlas) and the parties sign a written agreement stating the work is made for hire. When a work qualifies as WMFH, the hiring party is deemed the author from the start, § 201(b). The Supreme Court drew the crucial line between "employee" and "independent contractor" in Community for Creative Non-Violence v. Reid, 490 U.S. 730 (1989), applying common-law agency factors (the hiring party's right to control the manner of the work, the skill required, the source of tools, whether benefits and payroll taxes are paid, and so on). The trap: many commissioned works — a logo, a website, an app — do not fall within the nine statutory categories, so a "work made for hire" clause alone is not enough for a contractor's work. There is even a state-law landmine: in California, labeling an independent contractor's work "made for hire" can convert the contractor into a statutory employee for workers'-compensation and unemployment-insurance purposes (Cal. Lab. Code § 3351.5(c)), so the clause can backfire.

  2. A written assignment. Because the WMFH categories are narrow, the safe practice is to also include a present assignment of copyright in your agreement — language transferring whatever rights the contractor has to you. This belt-and-suspenders approach is standard in technology and creative contracts. We cover the drafting in employee invention assignment agreements and the broader software licensing agreements guide; for code specifically, drafting software license agreements.

A worked example (hypothetical). Acme Corp. hires a freelance illustrator to design its mascot. Acme's contract says only "work for hire." Because a standalone logo is not one of the nine § 101 categories, the WMFH label fails, and the illustrator still owns the copyright — leaving Acme with, at best, an implied license and a nasty dispute when it tries to put the mascot on merchandise. Had the contract also included an outright assignment, Acme would own the copyright cleanly. The lesson: get the paperwork right before the work starts.

What if two of us made it together?

Then you likely have a joint work — a work prepared by two or more authors with the intent that their contributions be merged into a unitary whole (17 U.S.C. § 101). Joint authors are co-owners and tenants in common: each can independently license the whole work to third parties (non-exclusively) without the others' consent, but each must account to the others for profits, Childress v. Taylor, 945 F.2d 500, 505 (2d Cir. 1991). That surprises a lot of collaborators — your co-writer can license the song to an advertiser without asking you, as long as they share the money. Be warned, too, that not every contributor is a joint author. Most circuits require each putative co-author to have contributed something independently copyrightable and to have shared an intent to be co-authors, Aalmuhammed v. Lee, 202 F.3d 1227 (9th Cir. 2000); a few are more forgiving and ask only for a "non-trivial" contribution, Brownstein v. Lindsay, 742 F.3d 55 (3d Cir. 2014). The way to avoid all of this guesswork is to spell out your arrangement in a written agreement before the project starts.

What about pieces of a magazine or anthology — who owns those?

That is the world of collective works and contributions to them, governed by 17 U.S.C. § 201(c): the author of each individual contribution keeps the copyright in their piece, while the collective-work author (the publisher) gets only a limited privilege to reproduce the contribution as part of that particular collective work, any revision of it, or any later collective work in the same series. The Supreme Court enforced these boundaries in New York Times Co. v. Tasini, 533 U.S. 483 (2001), holding that newspapers could not, without permission, license freelancers' articles to electronic databases as stand-alone items. We dig into this in contributions to a collective work.

Part Eight: Transfers, Licenses, and the Power to Take It Back

Can I sell or license my copyright?

Yes. Copyright is personal property; you can sell it outright (an assignment), license it (grant permission to use it under specified terms), or pass it to your heirs. The one formality that matters: an exclusive transfer of copyright ownership must be in writing and signed by the owner, 17 U.S.C. § 204(a). Non-exclusive licenses can be oral or implied, but "get it in writing" is always the better counsel. You can also (and should) record transfers with the Copyright Office under § 205; recordation gives constructive notice to the world and can establish priority between conflicting transfers (§ 205(d)). For deal mechanics in specific contexts, see software licensing agreements and, on the music side, music licensing in the streaming era.

I signed away my rights years ago and now they're worth a fortune. Can I get them back?

Possibly — and this is one of copyright law's most fascinating, founder-and-artist-friendly features. The Act gives authors (and after their death, certain statutory heirs) a right to terminate transfers and licenses after a set period, regardless of what the contract says. The idea, frankly, is to protect creators who signed bad deals before they knew their work's value (the young songwriter, the unknown novelist). The termination right cannot be waived or contracted away — it is exercisable "notwithstanding any agreement to the contrary." Courts police that phrase aggressively: in Marvel Characters, Inc. v. Simon, 310 F.3d 280 (2d Cir. 2002), a post-creation settlement re-characterizing a comic-book artist's work as "made for hire" was struck down as a void agreement to the contrary.

There are two main provisions, and the precise math matters. 17 U.S.C. § 203 governs transfers made by the author on or after January 1, 1978, and opens a five-year termination window beginning 35 years after the grant (or, where the grant covers the right of publication, the earlier of 35 years after publication or 40 years after the grant). 17 U.S.C. § 304(c) governs older grants, for works in their renewal term as of 1978, and opens a five-year window beginning 56 years after copyright was first secured; a further provision, § 304(d), adds a second window beginning 75 years after the copyright was secured for certain works whose earlier window lapsed. To exercise any of these, you must serve a written notice between two and ten years before the chosen effective date and record it with the Copyright Office before that date — and the deadlines are merciless. Authors have lost their rights for recording a day late, Baldwin v. EMI Feist Catalog, Inc., 805 F.3d 18 (2d Cir. 2015).

Three big limits to remember. First, termination does not apply to works made for hire — if the work was a WMFH, there was never an "author" on the creator's side to reclaim it. Second, termination does not reach derivative works already prepared under the original grant; those can keep being exploited under the old terms (the "derivative works exception" of §§ 203(b)(1), 304(c)(6)(A)), which is why a savvy grantee races to finish valuable adaptations before a termination takes effect, and a terminating author serves notice with the minimum lead time to limit new ones. Third, a grant made not by the author personally but through the author's loan-out company may not be terminable at all, because it was not made "by the author," Waite v. UMG Recordings, Inc., 450 F. Supp. 3d 430 (S.D.N.Y. 2020). This is the legal machinery behind the famous Superman and Marvel-character battles, which we tell as a story in intellectual property disputes concerning superheroes, and it is a central reason IP needs its own thought in estate planning — see who will inherit your intellectual property.

Part Nine: Infringement and Remedies

How do I know if someone has infringed my copyright?

Copyright infringement, at its core, requires two things: (1) ownership of a valid copyright, and (2) copying of protected, original elements of the work. Because direct evidence of copying (a confession, a "smoking gun" email) is rare, courts let a plaintiff prove copying circumstantially, and it is worth understanding that the analysis actually has two distinct "similarity" steps that even lawyers conflate. First comes probative similarity — any resemblance, even in unprotected elements or shared errors, that tends to show the defendant actually copied rather than created independently. Copying can be inferred from access plus probative similarity, or, where the resemblance is overwhelming, from striking similarity alone (so close that independent creation is implausible). Second, and separately, comes substantial similarity — whether the defendant copied enough protectable expression to be liable. That second step filters out the unprotectable ideas, facts, stock elements, and scènes à faire and compares only what the law actually guards. Two detective novels can share the genre's tropes (the brilliant sleuth, the locked-room murder) without infringing; copying the specific plot turns, characters, and prose is another matter. We walk through the mechanics, including the different tests the federal circuits apply (the "ordinary observer" test in the Second Circuit, the "extrinsic/intrinsic" test in the Ninth, the "abstraction-filtration-comparison" test for software), in copyright registration of computer programs and our litigation coverage.

One modern note: the Ninth Circuit, sitting en banc, abolished the old "inverse ratio rule" (the idea that strong proof of access lowers the bar on similarity) in Skidmore v. Led Zeppelin, 952 F.3d 1051 (9th Cir. 2020) — the long-running "Stairway to Heaven" case — so access and similarity are now analyzed on their own terms.

Be mindful of the clock, too. A civil infringement claim must be brought within three years after it accrues, 17 U.S.C. § 507(b), but each new act of infringement starts its own three-year clock, Petrella v. Metro-Goldwyn-Mayer, Inc., 572 U.S. 663 (2014) (the Raging Bull case), which also held that the equitable defense of laches cannot bar a claim brought within the limitations period. The Supreme Court recently confirmed in Warner Chappell Music, Inc. v. Nealy, 601 U.S. 366 (2024), that a plaintiff who sues in time can recover damages for older infringements without any separate three-year cap on the recovery.

What can I recover if I win?

The remedies in 17 U.S.C. §§ 502–505 include:

  • Injunctions to stop the infringement (§ 502) and impoundment or destruction of infringing copies (§ 503);
  • Actual damages (your provable losses, which can be measured as a reasonable license fee, On Davis v. The Gap, Inc., 246 F.3d 152 (2d Cir. 2001)) plus the infringer's profits attributable to the infringement (§ 504(b)), or
  • Statutory damages — $750 to $30,000 per work, rising to as much as $150,000 per work for willful infringement and dropping as low as $200 per work for innocent infringement (§ 504(c)) — available only if you registered in time under § 412. A crucial wrinkle: statutory damages are awarded per work infringed, not per act of infringement, so infringing one work a thousand times still yields a single award (within the range), while infringing ten works yields ten;
  • Attorney's fees and costs in the court's discretion (§ 505), again gated by § 412 and guided by factors like objective unreasonableness and the need for deterrence, Fogerty v. Fantasy, Inc., 510 U.S. 517 (1994); and
  • In criminal cases of willful infringement (§ 506; 18 U.S.C. § 2319), fines and imprisonment — but only where the conduct crosses statutory thresholds, such as infringement for commercial advantage, reproduction or distribution of copies worth more than $1,000 in any 180-day period, or distribution of a work being prepared for commercial release.

There is also a small-claims path now: the Copyright Claims Board (CCB), created by the CASE Act of 2020 and operating since 2022, is a voluntary tribunal inside the Copyright Office that hears smaller disputes (total damages capped at $30,000) without the expense of federal court — a real option for individual creators who could never afford traditional litigation, though the respondent can opt out and force the dispute into court. For the full picture of what is at stake on the wrong side of a claim, see what are the consequences of pirating intellectual property.

Can I sue the platform, not just the person who posted my work?

Sometimes. Even someone who never copied anything personally can be liable on a secondary theory. Contributory infringement reaches a party who knowingly induces or materially contributes to another's infringement; vicarious infringement reaches a party who has the right and ability to control the infringing activity and a direct financial interest in it. The Supreme Court added an inducement theory in Metro-Goldwyn-Mayer Studios Inc. v. Grokster, Ltd., 545 U.S. 913 (2005), holding a file-sharing service liable for distributing software with the object of promoting infringement. But for the many online services that qualify, the DMCA safe harbor of § 512 (discussed above) can blunt these claims — which is exactly why the takedown system exists, and why platform liability for user-generated infringement remains a live policy debate (see Section 230 reform and platform liability for user-generated IP infringement).

Part Ten: International Copyright

Is my U.S. copyright good in other countries?

Largely, yes — thanks to international treaties. There is no such thing as a single "international copyright" that protects you everywhere automatically, but the Berne Convention for the Protection of Literary and Artistic Works (which the United States joined effective March 1, 1989) ties together more than 180 member countries under a principle called national treatment: each member country must give foreign authors from other member countries the same copyright protection it gives its own nationals. So a work by a U.S. author is protected in France, Japan, or Brazil under those countries' own laws, and vice versa. Berne also forbids requiring formalities (like notice or registration) as a condition of protection. Layered on top are the WIPO Copyright Treaty and the TRIPS Agreement (administered through the World Trade Organization), which add minimum standards and enforcement obligations.

The catch: the United States does not have copyright relations with every country. The Copyright Office's Circular 38a lists the status of copyright relations country by country. And while national treatment guarantees you protection, the details — term length, exceptions, moral rights, and the existence of doctrines like fair use (which is essentially a U.S. invention; many countries have only a narrower "fair dealing") — vary considerably. A use that is fair under § 107 in the United States can still infringe abroad. If your work is being exploited overseas, you generally enforce under the local country's law, which is why cross-border matters call for local counsel.

Can foreign authors register their works in the United States?

Yes. Any work protected by U.S. copyright law can be registered, including many works of foreign origin. All unpublished works are protected regardless of the author's nationality. Published works are protected (and registrable) if they were first published in the United States or in a treaty country, or if the author is a national or domiciliary of a treaty country. (Circular 38a, again, is the reference; the URAA restoration provisions of § 104A may also apply to certain older foreign works that had lapsed into the U.S. public domain.)

Part Eleven: Special Cases and Odds and Ends

Does copyright protect architecture?

Yes, but only fairly recently. Architectural works became protectable on December 1, 1990, when the Architectural Works Copyright Protection Act took effect. The Act protects "the design of a building embodied in any tangible medium of expression, including a building, architectural plans, or drawings," for works created on or after that date (with a narrow window for designs that were unconstructed and embodied in unpublished plans on that date and built by the end of 2002). Buildings constructed before December 1, 1990 are not eligible. There is also a special limitation: people may photograph, paint, or otherwise picture a building ordinarily visible from a public place without infringing, 17 U.S.C. § 120(a), and the building's owner may alter or even demolish the building without the architect's consent, § 120(b). The Office's Circular 41 covers architectural-works registration.

Can a minor own a copyright?

Yes. Minors can be authors and copyright owners, and the Copyright Office issues registrations to them. The wrinkle is that state law may regulate a minor's ability to enter contracts about that copyright (licensing, assigning), so a parent, guardian, or court approval may be involved in the business side. When real money is at stake, consult counsel about the relevant state's rules.

What is the difference between a copyright and the physical object?

This trips people up constantly, so let us isolate it. Buying a painting does not buy you the copyright in the painting. Under 17 U.S.C. § 202, ownership of the copyright is distinct from ownership of the material object in which the work is embodied. Buy a hardcover novel and you own that copy — you can read it, lend it, resell it (first sale), or use it as a doorstop — but you cannot reproduce it, adapt it into a film, or post it online; those rights stay with the copyright owner. Same for the diary in the attic, the letter from a famous relative, the original sketch on a napkin. Possession of the thing is not ownership of the copyright.

How much do I have to change a work to claim a new copyright?

Enough that the changes are substantial and creative — "something more than just editorial changes or minor changes." Fixing spelling and tweaking commas does not create a new copyright; adding a substantial new chapter, new illustrations, or a meaningful revision creates a derivative work with its own (thin) copyright in the new material only, 17 U.S.C. § 103. Importantly, your copyright in a derivative work covers only what you added; it gives you no rights in the underlying work and does not extend that work's term. And you must have had the right to make the derivative in the first place (you cannot bootstrap a copyright off material you infringed). The mechanics — including how to disclaim the preexisting material on the application — are in copyright registration for derivative works.

Can I stop someone from using my work in a way that isn't really "copying"?

Not always — copyright is narrower than people assume, and several related but distinct rights pick up where it stops. Copyright will not stop someone from using your likeness in an advertisement (that is the right of publicity — see right of publicity basics and, for the AI frontier, the right of publicity meets digital doubles); it will not protect a brand name or logo as a source identifier (that is trademark); and it will not protect confidential business information that derives value from secrecy (that is trade secret law — see protection of trade secrets). Knowing which body of law your problem actually lives in is half the battle, and it is why our copyright vs. trademark explainer exists.

Key Takeaways

If you remember nothing else, remember these:

  • Copyright is automatic. It exists the instant an original work is fixed in tangible form — no registration, notice, or magic required (17 U.S.C. § 102).
  • It protects expression, not ideas, facts, systems, or names. The idea-expression line (§ 102(b); Baker v. Selden) is the master concept; Feist sets the low-but-real originality bar and kills "sweat of the brow."
  • Registration is optional but powerful, and timing is everything. You must register before suing (Fourth Estate), and registering early (before infringement or within three months of publication) unlocks statutory damages and attorney's fees under § 412.
  • Duration is long and date-driven. Life plus 70 years for individual works; the earlier of 95 or 120 years for works made for hire (§ 302). Old works require a renewal-and-notice flowchart.
  • Fair use is real but fact-specific. Four factors, weighed together, with transformativeness now read through the lens of market substitution after Warhol v. Goldsmith (2023) and Google v. Oracle (2021).
  • Ownership is not the same as paying. Get written assignments and proper work-made-for-hire language before the work begins; the WMFH categories are narrow.
  • Infringement is proved through access and substantial similarity — of protectable expression only — and damages run per work, not per act.
  • Authors can take their rights back. The termination right under §§ 203 and 304 cannot be contracted away, but it is unforgiving on deadlines (notice 2–10 years out, recorded before the effective date).
  • Protection is international but not automatic everywhere. Berne's national-treatment principle protects U.S. works in 180+ countries, but you enforce under local law.

Quick-Hit FAQ

Do I need to register my copyright to own it? No. You own it automatically on fixation. But you must register before you can sue for a U.S. work (Fourth Estate Public Benefit Corp. v. Wall-Street.com, 586 U.S. 296 (2019)), and you need timely registration to be eligible for statutory damages and attorney's fees (17 U.S.C. § 412). Practical advice: register works that matter, early. See how to register a copyright.

Can I use a few seconds of a song, or a short quote, without permission? There is no magic "10 percent" or "30 seconds" rule — that is a myth. Any unauthorized use can infringe; whether it is excused turns on fair use, a four-factor, fact-specific inquiry (17 U.S.C. § 107). Short takings that go to the "heart" of a work or substitute for it in the market can still infringe (as 300 words did in Harper & Row), while longer takings for genuine criticism or commentary can be fair. When in doubt, license or ask counsel.

Someone copied my photo online. What do I do? Send a DMCA takedown notice to the platform under 17 U.S.C. § 512, identifying the work and the infringing material; the platform must act expeditiously to keep its safe harbor. Consider registering the photo (it is a prerequisite to filing suit and strengthens any later case). For very small disputes, the Copyright Claims Board offers a low-cost alternative to federal court. Step-by-step instructions are in how to file a DMCA takedown notice and respond to one.

Is everything on the internet free to use? No — quite the opposite. Most online content is copyrighted by default, automatically. "Publicly available" is not "public domain." Always assume a photo, article, or video you find online is protected unless it is clearly licensed (for example, under a Creative Commons license whose terms you follow) or genuinely in the public domain.

How do I know if an old work is in the public domain? As a 2026 rule of thumb, U.S. works published before 1930 are public domain, and the line advances each January 1. For works from 1930 onward, the answer depends on publication date, notice, and renewal — a real flowchart, with special detours for pre-1972 sound recordings and pre-1990 architecture. Walk through it in renewal of copyright. When money is on the line, confirm with counsel.

Can I copyright my business name, logo, or slogan? Names and slogans are not copyrightable — look to trademark (USPTO). A logo with enough original artwork can be copyrighted and trademarked. Sort out which tool you need with copyright vs. trademark and trademark basics.

I hired a contractor to make something. Who owns it? Often the contractor, unless your contract makes it a qualifying work made for hire and/or contains a present assignment of copyright. Because the work-made-for-hire categories are narrow, the safe move is a written assignment, signed before work begins (17 U.S.C. § 204(a)). See employee invention assignment agreements.

Is a "poor man's copyright" a real thing? No. Mailing yourself a copy gives you none of registration's benefits and is not recognized by copyright law. Register instead.

How much will I get if I win an infringement suit? It depends on whether you registered in time. With timely registration you can elect statutory damages of $750 to $30,000 per work (up to $150,000 if the infringement was willful) plus attorney's fees; without it, you are limited to actual damages and the infringer's profits (17 U.S.C. §§ 504, 505, 412). Remedies are explored in what are the consequences of pirating intellectual property.

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This article provides general information about U.S. copyright law and is not legal advice. Copyright questions are fact-specific, and the law changes; for guidance on your particular situation, consult qualified counsel.