What is an ISBN?

• The International Standard Book Number (ISBN) is a 10-digit or 13-digit number (e.g., 0-940016-64-8 or 978-0-940016-64-4) used to identify books.
  
• An ISBN is found on a book's back cover (near the bar code) or on the title page with the copyright information.
  
• Check your course requirements for the ISBNs of the books you need.
  
• Enter a single ISBN or a series of ISBNs in our search box to find and order the correct textbook edition or a bundle of them.