If you like light weight books you should read "then there were no one" (previusly called ten little ni***rs) by Agatha Christie. Its abot ten people whos stuck on a small island then one by one they get killed, by one of my favorite books.
If your in to Crime novels you should "The Girl with the Dragon Tattoo" (or "Men who hate woman") by stieg larsson, great swedish novel.
If your in to really deep stuff you should read the Russan Crime and Punishment (or Reaskolnikov). Its probobly one of the best, deepest and intresting book you'll ever read.