The 4 Hour Work Week - Time Ferriss
Confirmed to me that I wasn't the only person who thougt that the western European/America concept of working for someone else, in an office, for a set number of hours per week wasn't the future.
Crush It - Gary Vaynerchuk
This along with one of his keynotes was one of the things that gave me the final push to leave corporate.
Rework - Jason Fried
How to do business the opposite way to how you were taught in school/corporate.