Copyright Page – ISBNs for Self-Publishers: Part 3 of 5
- Michelle M. White
- Apr 1
- 3 min read
Updated: Apr 14
In previous posts, we explored the key components of a copyright page and the legal notices you may want to include. Now, let’s take a closer look at the ISBN (International Standard Book Number)—an essential element for book distribution and discoverability.
Whether you’re publishing one book or building an author brand, having the right ISBN strategy is key. It impacts how your book is listed, where it can be sold, and who’s recognized as the publisher. Let’s break it down so you can make the best choice for your publishing goals.
This article is the third in a five-part series that guides you through each section of the copyright page. Here’s what’s included:
1. Copyright Page Basics for Self-Publishers (Already covered!)
2. Copyright Page – Legal Notices (Already covered!)
3. Copyright Page – ISBNs (You’re reading it now!)
4. Copyright Page – Library of Congress Registration
5. Copyright Page – Additional Components
Why ISBNs Notices Matter
An ISBN is more than just a number—it’s your book’s unique identifier in the publishing world. It allows booksellers, libraries, and distributors to track and catalog your book efficiently. Without an ISBN:
Your book may not be available on major platforms like Amazon, Barnes & Noble, or independent bookstores.
Libraries and institutions may struggle to catalog your book properly.
Your book’s professional legitimacy could be questioned by buyers and reviewers.
By obtaining your own ISBN, you ensure your book is linked to you as the publisher, not a third-party service.
Understanding the ISBN Structure
Every ISBN consists of 13 digits, and each part of the number represents specific information about your book:
Prefix (978 or 979) – Identifies the book industry globally.
Country or Language Code – Shows the book’s country of registration.
Publisher Identifier – Identifies the publishing entity (you).
Title Identifier – Unique to each book or edition.
Check Digit – A mathematical formula ensuring ISBN validity.
Each format of your book needs a separate ISBN. If you publish in hardcover, paperback, eBook, and large print, each version requires its own unique ISBN.
Should You Use a Free ISBN?
Some platforms, like Amazon Kindle Direct Publishing (KDP) and hybrid publishers, offer free ISBNs, but there are disadvantages to consider:
Amazon or another service will be listed as the publisher, not you.
Limited distribution—you may not be able to sell your book outside of Amazon or your provider’s platform.
Branding issues—if you want to build a professional author or publishing brand, using a free ISBN may make your book look less independent.
Best Practice: Purchase your own ISBN to maintain control over your book’s distribution and professional identity.
Where to Get an ISBN
The process of obtaining an ISBN varies by country:
United States – ISBNs are purchased through Bowker at myidentifiers.com.
Canada – ISBNs are free for eligible publishers through Library and Archives Canada.
United Kingdom – ISBNs are purchased from Nielsen
ISBN Pricing in the U.S. (Bowker)
Single ISBN – $125
10 ISBNs – $295
100 ISBNs – $575
Since each book format requires a separate ISBN, buying in bulk can save money if you plan to publish hardcover, paperback, and eBook versions and also save some ISBNs for future books.
Do You Need a Barcode for Your ISBN?
For printed books, you will also need a barcode on your back cover. Bowker offers barcode purchasing, but you may not need to buy one separately if:
Your book designer can generate a barcode for you.
You’re publishing with IngramSpark, which provides barcodes as part of their print templates.
Tip: Always check with your book designer before purchasing a barcode—you may be able to save money!
Final Thoughts
An ISBN is essential for distribution, discoverability, and professionalism in self-publishing. Investing in your own ISBN gives you control over your book’s branding and where it’s sold.
Next week, we’ll discuss how to register your book with the Library of Congress—an optional but valuable step for added credibility and library distribution.
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