1. Guns of August - Barbara Tuchman
2. Godel Escher Bach - Douglas Hofstadter
3. Moby Dick - Herman Mellville
4. A Clockwork Orange - Anthony Burgess
5. War and Peace - Leo Tolstoy It's tough to pick a Top Five, but those are books that I'll recommend without hesitation. Ok, five more: 6. Catch-22 - Joseph Heller
7. Franny and Zooey - J. D. Salinger
8. The Lord of the Rings (all 3) - J. R. R. Tolkein
9. Broca's Brain - Carl Sagan
10. The Private Life of Chairman Mao - Dr. Li Zhisui
Nice list. "Godel Escher Bach" was one of those great books, that I am still very hesitant to suggest to people - it's not for everyone, and it gets very dense about halfway through. So beautiful, though. Pro-tip for readers of "A Clockwork Orange" - there is a glossary at the back! I read it to the end before I realised that. I'm not sure if knowing that in advance would have made it better or worse, though!