NOTtheBookStore.com helps students save tons of money on textbooks. We show you which books you need for your class and how much you’ll save over the campus BookStore. Then click through and buy off trusted websites like Amazon.com and Half.com. Students save an average of 50% off textbooks. If you spend $500 on books, that’s $250 savings a semester! NOTtheBookStore.com was started at Xavier University in Cincinnati, OH.