Understanding ISBNs (and Why Free Ones Can Cost You Control)

An ISBN (International Standard Book Number) is a unique identifier that tells the publishing world who owns and controls a specific edition of a book. Every format—ebook, paperback, hardcover, audiobook—needs its own ISBN if you want full professional distribution.

Why You Should Avoid “Free” ISBNs from Print-on-Demand Platforms

Platforms like Amazon KDP offer free ISBNs, but there’s an important trade-off:

• They are listed as the publisher, not you

• You lose control over where and how that ISBN can be used

• Your book may be locked to that platform (or restricted elsewhere)

• Bookstores, libraries, and reviewers may see it as less professional

• If you ever move printers or expand distribution, you often must re-ISBN the book

In short: the ISBN isn’t free—you pay with control.

If you want to build a long-term author brand or publishing business, owning your ISBNs matters.

Where to Get Your Own ISBNs three examples (By Country) also some libraries will give or sell them to you as well country dependent.

Canada

• ISBNs are free for Canadian publishers

• Issued by ISBN Canada

• You are listed as the publisher

• Full ownership and portability

This is one of the best systems in the world for independent authors.

United States

• ISBNs are purchased through Bowker

• Cost ranges from expensive (single ISBN) to more reasonable in bulk

• You retain full publishing control

Many U.S. authors buy ISBNs in blocks to reduce per-book cost.

United Kingdom

• ISBNs are purchased through Nielsen ISBN Store

• Like the U.S., ownership = control

• Widely recognized by bookstores and libraries

Why Copyright Registration Is Important

Copyright exists the moment you create your work—but registration gives you power.

What Copyright Registration Does

• Creates legal proof of ownership

• Strengthens your position if someone copies or steals your work

• Allows access to statutory damages in some jurisdictions

• Makes enforcement faster, cheaper, and clearer

If a dispute ever happens, registered copyright turns “I wrote this” into documented legal fact.

ISBNs identify your book commercially.

Copyright protects your work legally.

They serve different but equally important roles.

The Big Picture for Indie Authors

If you’re serious about publishing:

• Own your ISBNs

• Control your publisher name

• Register your copyright

• Treat your books like long-term intellectual property

Shortcuts in publishing almost always cost you later—usually in rights, reach, or revenue.