What is an ISBN?

ISBN The ISBN (International Standard Book Number) is a 10- or 13-digit number used for identification. An ISBN is unique to every book, so it is the best way to find the exact edition of the book you're looking for.

Where is the ISBN?

The ISBN is always found on the back cover, near the bar code. It will also be listed inside the book, on the same page as the copyright and publisher information. It is always labeled ISBN (e.g. ISBN 978-0-307-58836-4).

To search by ISBN, simply type the 10 or 13 digits into the search box. Do not include dashes or spaces.