Sell Us Your Books Online Enter the ISBN of each book you wish to sell, and receive an offer. If you like our bid, send the books to us (we will cover the freight) and receive credit to your account or payment via PayPal.
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What's an ISBN?
The International Standard Book Number (ISBN) is a 10-digit code assigned to books published after 1972 or a 13-digit code assigned to books published after 2007. Each ISBN is unique to a specific book. A different ISBN is assigned to hardcover and paperback versions of the same title, as well as later editions with changes or additional content, or editions produced by different publishers. You will generally find the number printed over the bar code on the book's back cover or on the copyright page.