Official ISBN & Author Services

ISBN Assignment & Publishing Services for Independent Authors

Register official 13-digit ISBNs to your book and order professional publishing services while retaining 100% rights and royalties.

Official Bowker Registry

Instant Format Assignment

100% Rights & Royalties

Publishing Services

Everything required to register, format, and sell your book across major retail channels.

Official Bowker Standard

ISBN Assignment

Official 13-digit ISBNs registered under your own imprint. Add your book and select up to 4 formats (Paperback, Hardcover, eBook, Audiobook) with instant code delivery.

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40,000+ Retail Network

Global Distribution

Expand your book's reach to over 40,000 bookstores, libraries, and online retailers worldwide, including Amazon, Barnes & Noble, and Ingram.

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Cover & Interior Formatting

Publishing Services

Work with vetted publishing specialists for custom cover design, interior page formatting, proofreading, and marketing directly linked to your book listing.

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How ISBN Assignment Works

Three straightforward steps from book listing to official global registration.

Step 01

Add Book Listing

Create a private book listing with your title, author name, and chosen publisher imprint.

Step 02

Select Formats & Order

Choose the formats you want to publish (Paperback, Hardcover, eBook, Audiobook) and complete checkout.

Step 03

Instant ISBN Assignment

Receive your official 13-digit ISBN codes instantly with permanent global catalog registration.

Why Official ISBNs Matter

Official ISBN Ownership vs. "Free" Platform Options

Owning your ISBN gives you complete imprint branding and the freedom to sell across all global channels without platform lock-in.

Feature	ISBN Publishing (Official)	Free Platform ISBNs
Publisher Imprint Name	Your chosen publisher/author imprint (100% brand control)	Listed as 'Independently Published' or platform-owned imprint
Distribution Freedom	Sell everywhere (Amazon, Ingram, B&N, Apple Books, local libraries)	Often restricted to a single retailer ecosystem
Print & POD Portability	Transferable to any printer, offset press, or POD provider worldwide	Non-transferable (cannot be used with other printers)
Free Barcode Generation	Generate free print-ready vector barcodes anytime via ISBNBarcode.org	Auto-stamped low-res cover barcode only (not downloadable separately)

Common Questions

Frequently Asked Questions

Everything you need to know about official ISBN registration and publishing.

An ISBN is the international standard identifier used by bookstores, libraries, and online retailers worldwide. Without an official ISBN, major distributors (like Amazon, Barnes & Noble, and Ingram) cannot catalog or distribute your book to bookstores and libraries under your chosen imprint name.

Ready to Publish Your Book?

Add your book, select your formats, and receive official ISBN assignments under your own imprint today.