Books for Less is a great used-book store, with good prices and accomodating service. It is a great place to go browse and see if there's anything that catches your eye, and if there is, it probably only costs a few dollars. And if you don't feel like keeping it, you can sell it back to them. They also do mass orders for schools, etc. for less than many major companies. They have the ability to acquire out-of-print books, but these are often very expensive (not a fault of the store, just a major tendency of the book market).