The International Standard Book Number, or ISBN, is the most important identifier your book can have.
ISBNs identify your books by title, author, format, and subject. They simplify the distribution of books throughout the global supply chain by explaining exactly what book is being bought and sold.
Without an ISBN, you will not be found in most bookstores or libraries, either online or brick and mortar.
With an ISBN, you can sell your book anywhere in the world.
When you choose to distribute your book through DIY, we will handle the ISBN assignment and title registration for you.