James P. answered 06/23/13
Slightly Epic Math Tutoring
I've downloaded my textbooks whenever I could in the past, but most of the time torrent sites don't have the book you need.
Give http://thepiratebay.sx/ a try, if that doesn't work, buy/rent your books from www.amazon.com or www.chegg.com . For some books amazon is better, and for other chegg has the better deal.
Whatever you do, don't buy it at your school book store - That's practically highway robbery.