Yeah, Gatsby is really bad.
My favourite books are The Alchemist by Coelho, The Little Prince by Saint-Exupery, Disgrace by Coetzee or Hitchhiker's Guide to the Galaxy by Adams. As far as non-fiction, A Fortunate Life by A.B. Facey is wonderful.
As far as I'm concerned, the last two of those are really good reads for anyone, the first two might not be for everyone, and Disgrace is a tough read so only tackle it if you enjoy reading :P