Copyright is the legal ownership a creator automatically holds in an original work the moment it is written down, recorded, or otherwise saved in a lasting form. It covers books, songs, photographs, films, software, architectural plans, and much more, and it gives the creator exclusive control over how the work is copied, adapted, shared, performed, and displayed. No paperwork is required for the protection itself, though registering with the U.S. Copyright Office unlocks the tools you need to enforce your rights if someone copies your work.
What Copyright Covers
Federal law protects several broad categories of creative work:1Office of the Law Revision Counsel. 17 USC 102 – Subject Matter of Copyright In General
- Literary works, including books, articles, blog posts, and computer code
- Musical works and their lyrics
- Dramatic works such as plays and screenplays
- Pantomimes and choreography
- Visual art, including paintings, sculptures, photographs, and graphic designs
- Movies and other audiovisual works
- Sound recordings
- Architectural designs, whether expressed in plans or in the finished building
To qualify, a work has to be original and show at least a minimal spark of creativity. Original does not mean groundbreaking. It means you made the work yourself instead of copying it from someone else. Courts have set this bar deliberately low, so even modest creative choices in how you arrange or express information are usually enough.
What Copyright Does Not Cover
Copyright protects the way you express an idea, not the idea itself. If you write a mystery novel about a detective solving crimes in 1920s Chicago, no one can copy your sentences, characters, or plot structure. Another author is still free to write a completely different mystery set in the same time and place. The statute is explicit: copyright never extends to ideas, procedures, processes, systems, methods of operation, concepts, principles, or discoveries, no matter how they are presented.2Office of the Law Revision Counsel. 17 USC 102 – Subject Matter of Copyright In General
Several other things fall outside copyright’s reach:
- Titles, names, and short phrases. A book title, band name, or advertising slogan lacks enough creative expression to qualify, though some may be protectable as trademarks.
- Facts and data. Raw facts like historical dates, measurements, or phone numbers cannot be owned through copyright, no matter how much effort went into finding them.
- Unfixed works. An improvised speech or unrecorded jam session that was never captured in any lasting medium has no copyright protection.
- Useful articles. The functional aspects of everyday objects like lamps, furniture, or clothing are generally not copyrightable, though decorative elements that can exist independently of the object’s function may qualify.
One boundary worth flagging: purely AI-generated content. The U.S. Copyright Office has stated that it will not register works where a machine determined the creative elements of the output. Type a prompt into an image generator and let the software make the artistic decisions, and that image has no copyright protection. Where a human exercises meaningful creative control over the process, the human-authored parts can still qualify.3U.S. Copyright Office. Copyright Registration Guidance – Works Containing Material Generated by Artificial Intelligence
When Protection Starts
Protection is automatic. The instant you fix a work in a tangible medium, whether by writing it on paper, saving it to a hard drive, or recording it on your phone, copyright exists. You do not need to publish the work, add a © symbol, or file anything with the government.4U.S. Copyright Office. What Is Copyright
“Fixed” means the work is captured in a form stable enough to be read, heard, or viewed for more than a brief moment. A saved Word document qualifies. A sandcastle, arguably, does not. The medium can be anything, including formats that have not been invented yet, as long as the work can be perceived either directly or with the help of a device.
The Rights Copyright Gives You
Owning the copyright in a work means you hold a bundle of exclusive rights. Without your permission, no one else can:5Office of the Law Revision Counsel. 17 USC 106 – Exclusive Rights in Copyrighted Works
- Reproduce the work in any format
- Create derivative works, such as turning a novel into a screenplay or remixing a song
- Distribute copies to the public by sale, rental, or lending
- Perform the work publicly, in person or through a broadcast
- Display the work publicly, whether in a gallery or on a website
These five rights are the core of what ownership means. You can license any of them individually. A novelist might grant a publisher the right to distribute the book while keeping the film adaptation rights.
Visual artists get two additional protections. Under federal law, painters, sculptors, and photographers who create limited-edition fine art also hold rights of attribution (the right to be credited) and integrity (the right to prevent intentional destruction or mutilation of a work of recognized stature). These rights belong to the artist personally, remain with the artist even after the physical artwork is sold, and cannot be transferred. They can only be waived in writing.6Office of the Law Revision Counsel. 17 US Code 106A – Rights of Certain Authors to Attribution and Integrity
Fair Use as a Limit
Not every unauthorized use of a copyrighted work counts as infringement. Fair use is a legal defense that allows limited use of someone else’s work without permission for purposes like criticism, commentary, news reporting, teaching, scholarship, and research. Courts weigh four factors:7Office of the Law Revision Counsel. 17 USC 107 – Limitations on Exclusive Rights Fair Use
- The purpose and character of the use. Commercial uses get less leeway than nonprofit or educational ones. Uses that transform the original by adding new meaning, commentary, or context are more likely to qualify.
- The nature of the copyrighted work. Using factual or published works gets more latitude than using highly creative or unpublished ones.
- The amount used. Borrowing a small portion is safer than copying the whole thing, though even a short excerpt can fail this test if it captures the “heart” of the work.
- The effect on the market. If the use acts as a substitute for the original and hurts its commercial value, fair use is much harder to establish.
No single factor controls the outcome. Courts look at all four together, and the analysis is heavily fact-dependent. Quoting a few lines from a book in a review will almost always qualify. Reposting an entire article on your blog almost certainly will not.
How Long Copyright Lasts
For any work created on or after January 1, 1978, copyright lasts the author’s lifetime plus 70 years. If two or more authors collaborated, the clock starts running 70 years after the last surviving co-author dies.8Office of the Law Revision Counsel. 17 USC 302 – Duration of Copyright Works Created on or After January 1 1978
Works made for hire, where an employer owns the copyright rather than the individual creator, follow a different rule: 95 years from first publication or 120 years from creation, whichever comes first. Anonymous and pseudonymous works use the same timeline unless the author’s identity is later revealed in Copyright Office records.
Once copyright expires, the work enters the public domain and anyone can use it freely. Everything published in the United States before 1930 is now in the public domain, and works first published in 1930 joined them on January 1, 2026. Works published between 1930 and 1978 may still be protected for up to 95 years from publication, depending on whether the original publisher complied with notice and renewal requirements that were mandatory at the time. If you need to check the status of a specific older work, the Copyright Office keeps searchable public records going back to 1870.9U.S. Copyright Office. Search Copyright Records – Copyright Public Records Portal
Why Registration Still Matters
You do not need to register a work to hold copyright in it. Federal law is clear on that point.10Office of the Law Revision Counsel. 17 USC 408 – Copyright Registration in General Registration matters because of what it lets you do when someone infringes.
You generally cannot file a copyright infringement lawsuit in federal court until you have registered the work, or had your application formally refused by the Copyright Office.11Office of the Law Revision Counsel. 17 USC 411 – Registration and Civil Infringement Actions Without a registration, you cannot get in the courthouse door.
Timing matters too. Register within three months of first publishing the work, or before any infringement begins, and you become eligible for statutory damages and attorney’s fees. Miss that window and you are limited to proving your actual financial losses, which is often difficult and expensive. Statutory damages are set by law and do not require you to calculate what you lost dollar for dollar.12Office of the Law Revision Counsel. 17 USC 412 – Registration as Prerequisite to Certain Remedies for Infringement
The basic filing fee for a single-author work submitted electronically is $45.13U.S. Copyright Office. Fees
When infringement happens, the owner can pursue either actual damages, which cover proven financial losses plus any profits the infringer earned, or statutory damages ranging from $750 to $30,000 per work infringed. If the court finds the infringement was willful, statutory damages can climb as high as $150,000 per work.14Office of the Law Revision Counsel. 17 USC 504 – Remedies for Infringement Damages and Profits Those larger recoveries, again, depend on having registered on time.