Sell Books! Sell Textbooks! To sell books or sell textbooks to us, just enter in the ISBNs (in the blue rectangle to the left) and ship them to us for FREE with our postage-paid mailing label. Textbook buyback and book buyback has never been easier!

What’s an ISBN, anyway? Our textbook buyback and book buyback is ISBN-driven. An ISBN is a unique 10- or 13-character ID given to every book. Look on the back of your book for something like this example, and look for the 10- or 13-character number above the bar code.