They are TERRIBLE TO DEAL WITH! Placed an order on 12. 12. 10 and cancelled on 12. 22. 10... they credited back my $20 and i rec'd an email saying they would ATTEMPT to cancel the shipment... never heard from them again and I thought all was done (like a NORMAL company...) and then on 1. 2. 11 I got an email saying the books were SHIPPED and my acct was debited! When I called them they said that they could not cancel and that I would have to call them back and when I recv them and get and RA # and I would have to pay for the shipping! What a racket! I may just keep the books for my daughters class and hope I never have to deal with this company again... they certainly have NO customer service ethic!