The Ultimate Hitchhiker's Guide
OH MAN, I feel like I get SO many more literary reference jokes now. This is one of those "must read" books so you can remain culturally literate. At times, the book was quite goofy and whimsical, but at other times I found myself pondering the deeper questions in life.
My favorite part of the book is probably the total perspective vortex. The entire universe extrapolated from a single piece of fairy cake.
PERSONAL NOTE: I accidentally missed my flight home from Munich, Germany due to a missed train one day and and found myself jogging around the airport listening to this book.