One of the previous posts mentioned that it changes for them frequently, and I'm pretty much the same way. But for right now:
Fiction: The Hitchhiker's Guide to the Galaxy
Non-Fiction: Zen and the Art of Motorcycle Maintenance
Fiction: The Hitchhiker's Guide to the Galaxy
Non-Fiction: Zen and the Art of Motorcycle Maintenance
https://en.wikipedia.org/wiki/Zen_and_the_Art_of_Motorcycle_...
Probably one of the few books (the series that is) I could read on repeat and still laugh out loud from.
I agree it's one of the best books out there.