There are a lot of books rated 5 stars. They're good reads most of them, but there's another class of books. The kind where even a year later you remember them. They truely changed how you think about a topic. I'm always searching for those top class books, the kind that feel like religious experiences to read. The issue is there's no way to distinglish them from regular 5 star books, the kind where you put them down and say "wow good book", but a year from now you really can't recall much about it..