Publishing guide
ISBN and copyright: a publishing planning guide for authors
At a glance
Understand KDP ISBN choices, U.S. copyright registration, commissioned work and permissions before preparing your book for publication.
An ISBN identifies a book edition. Copyright concerns rights in the creative work. They answer different questions, so plan both before uploading files or commissioning artwork. Start with an edition list, a record of contributors and a permissions log.
This guide covers KDP's published identifier requirements and selected U.S. copyright principles. Requirements in another country can differ. Use the official sources linked beside each explanation and get qualified legal advice for a specific rights, contract or infringement question.
Choose identifiers for your intended editions
On KDP, paperback and hardcover editions need separate ISBNs, with exceptions for eligible low-content books. An ISBN is optional for Kindle ebooks. A number cannot be shared across formats or reused for a substantially changed edition. Check KDP's ISBN and imprint guidance against the editions you plan to publish.
KDP's free print ISBN is usable only on KDP and displays the imprint Independently published. With your own ISBN, the title, author and imprint entered on KDP must match the ISBN agency's record. Neither choice establishes ownership of the manuscript.
Before selecting an identifier, write down each intended platform and ask what it accepts. Keep the confirmed number, format and imprint together in your publication record. Check the relevant agency and platform directly when planning another territory or distribution route.
Separate copyright protection from registration
Under U.S. law, copyright protection begins when an original work is created and fixed in a tangible form. It can cover unpublished manuscripts. It protects creative expression rather than facts or ideas themselves. Registration is a separate process; an ISBN does not register copyright. The U.S. Copyright Office's general FAQ explains these distinctions.
That FAQ states that registration is required to bring an infringement lawsuit for a U.S. work. Registration timing can also affect available remedies. Do not infer litigation eligibility from a copyright notice or a saved draft. Ask a qualified professional about the work, jurisdiction and timing involved.
For production planning, identify who is responsible for any registration application, which manuscript version it covers and where the submission record will be retained. Confirm the Office's current application and deposit requirements when the application is prepared.
Commissioned writing and artwork need clear rights records
Paying a writer, editor or illustrator does not by itself make the result a U.S. work made for hire. Copyright Office Circular 30 describes two routes: work created by an employee within the scope of employment, or qualifying commissioned work in one of the statutory categories with an express, signed written agreement. The facts and work type matter.
An assignment or license can address rights separately. For a ghostwriting project, cover or illustration commission, ask for a written explanation of the rights arrangement and obtain legal review when needed. A project proposal should also identify the deliverables, review stages, credits and files you will receive.
For example, a cover may contain an original illustration and a licensed stock photograph. Record both components and their permitted uses; a delivery folder alone does not explain the rights in each asset.
Keep a permissions log while you write
Log material created by someone else as it enters the manuscript, rather than trying to reconstruct its source at layout. Include photographs, quotations, maps, illustrations, letters and artwork. This makes unresolved questions visible before production.
| Record | What to retain |
|---|---|
| Material | Exact extract or asset name and the chapter or page where it appears. |
| Source | Creator, publication details, source link and access date. |
| Intended use | Print, ebook, cover, promotion, translation or another specific use. |
| Basis for use | Permission, license or another basis requiring verification; retain the supporting record. |
| Open question | What needs clarification, who is handling it and whether production can proceed. |
For an illustrative family memoir, the log could list a relative's photograph, its source, the planned print and ebook use, and the permission still being requested. Keep unresolved material flagged in the manuscript and discuss it with the appropriate rights holder or adviser.
Verify public domain and fair use for the actual material
A work's U.S. copyright term depends on factors such as its creation, publication and authorship. An old publication date alone is insufficient for every situation. Consult the Copyright Office's duration guidance for the particular work, and check the jurisdiction where you intend to use it.
U.S. fair use considers purpose, the nature of the source, the amount used and the effect on its market. There is no universal word count or percentage that makes reuse permissible. The Copyright Office's Fair Use Index explains the case-specific assessment. Credit is useful for attribution but does not settle permission.
Frequently asked questions
Does an ISBN protect my copyright?
No. It identifies an edition. Copyright protection and any registration are separate matters.
Who is listed as the imprint with KDP's free ISBN?
The imprint is Independently published. KDP says its free print ISBN can be used only on KDP.
Does hiring a ghostwriter automatically make the book a work made for hire?
No. U.S. work-made-for-hire status depends on the legal criteria and the facts. Clarify the ownership arrangement in writing and seek qualified review.
What should I prepare before asking for publishing support?
List the editions, account owner, identifier choices, contributor agreements and permissions still unresolved. The manuscript readiness checklist helps organize the production questions.