I sold 5 books. I pay over a hundred for each book 2 years ago while in Graduate School. I decided to sell the books for around $20 to $28 each to this people. After they got my books, they changed the refund price. According to them I did not send the right book (for one book) and I another book was damage. All books were brand new and the correct ones. I am very disappointed, they did not even offer to ship back and they want me to believe that they will recycle two books that I know are brand new and the correct ones. It's a shame people like these are in this business.