I really liked the series Wool by Hugh Howey. It's dystopian fiction, but I thought the writing was very good and I enjoyed the characters. It's actually five books in one, so you could kill five birds with one stone Catch 22 is another of my favorites. Also, anything Michael Crichton, especially Jurassic Park and The Lost World. One of my other favorites is another book called The Lost World but by Sir Arthur Conan Doyle.