Your book.
Your ISBN.
A publisher-owned ISBN registered through Bowker — the official US ISBN agency — gives your book the retail credibility that free KDP ISBNs cannot. Libraries, major bookstores, and industry databases all require publisher-assigned ISBNs for stocking consideration.
Everything we
handle for you.
Bowker Registration
ISBN registered through Bowker, the exclusive US ISBN agency — in your name, not Amazon's.
Format-Specific ISBNs
Separate ISBNs for eBook, paperback, and hardcover as required by publishing industry standards.
Barcode Generation
Scannable EAN-13 barcode files created for your print cover files.
Books In Print Listing
Your title listed in Books In Print — the universal retail and library catalogue.
Publisher Name
Registered under your own publishing imprint name for full brand ownership.
Lifetime Ownership
ISBNs belong to you permanently — not tied to any single platform or distributor.
Common questions
answered honestly.
Why do I need my own ISBN instead of using the free ISBN from KDP?
KDP's free ISBN lists the publisher as "Independently Published" — which signals self-publishing to booksellers, librarians, and reviewers. A Bowker-registered ISBN with your imprint or company name as publisher creates a professional publishing identity and is required for distribution through channels like IngramSpark.
How many ISBNs do I need?
Each distinct format requires its own ISBN: paperback, hardcover, eBook, and audiobook each need a separate ISBN. A book published in all four formats needs four ISBNs. We recommend purchasing a block of 10 from Bowker (significantly cheaper per unit than single-ISBN purchases) if you plan to publish multiple titles.
Is ISBN registration a one-time cost?
Yes. You purchase the ISBN from Bowker (the U.S. ISBN agency), register your title's metadata, and that ISBN is yours permanently. There are no annual fees. Revision or edition changes require a new ISBN — a significant revision (new title, substantial new content, new edition) triggers a new registration.
Will my ISBN show me as the publisher of record?
Yes. When you register through Bowker under your own imprint name, your imprint appears as the publisher in Bowker's Books In Print database and on all retailer metadata that reads from that database. This is what distinguishes a professionally self-published book from a platform-published one.
Let's get your book published.
Share your manuscript details and a publishing consultant will map out the fastest path to market.
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