ISBNs help your book get discovered

The ISBN is a unique identifier for a book or other book-like product (such as an audiobook) that specifies its format, edition, and publisher.

Why should I buy an ISBN?

There are many reasons to purchase an ISBN for your title, including:

An ISBN improves the likelihood your book will be found and purchased

An ISBN links to essential information about your book

An ISBN enables more efficient marketing and distribution of your title

Most retailers require ISBNs

Correct use of the ISBN allows different product forms and editions of a book, printed or digital, to be differentiated clearly, ensuring that customers receive the version they require

An ISBN helps you collect and analyze book sales data

An ISBN ensures your book’s information will be stored in the Books In Print database

Books In Print is consulted by publishers, retailers and libraries around world when searching for title information

The ISBN conveys no legal or copyright protection, however, the use of ISBNs for publications is prescribed by law in some countries

ISBNs are the global standard for book identification

ISBNs never expire