ISBN Assignment
In the book market, an International Standard Book Number (ISBN) is an essential piece of identification. This 13-digit number is unique to your book and allows distributors, retailers, printers and readers to accurately find and order your title. We assign every book we publish with an ISBN so you can rest assured your book can be found by people all around the world with this unique identifier. If your package includes multiple book formats, such as a softcover, hardcover and e-book, each format receives a unique ISBN.