How do you sell your textbooks? Selling back to the bookstore, gets you only about 20% (or less!) of what you paid. Do you post flyers on campus? I'm thinking of eBay/half.com but not too sure. I wanna get back as much as possible, those books are expensive! Also, if you're looking for books, be sure to check out half.com, you can find almost any book for a really great price!