Thinking Fast and Slow (Daniel Kahneman)

This book is absolutely life-changing. Kahneman and Tversky started the 'heuristics and biases' movement in psychology. Now he's written a popular account of the last twenty years of the research. I already knew about a lot of the stuff in here, but after reading this I feel very differently about it all. He has Feynman and Dawkins' gift of making the subject matter look obvious and the reader feel like a genius. The mark of the true master.