Daniel Kahneman worked on some of the greatest psychological thingies of our time. Behavioral economics, he was there for that. The difference between things that we think make us happy and really make us happy? He was there for that, too. Those studies about how people don't know how to think about risk unless you force them to sit down with a pencil and crunch the numbers? Oh yeah, that too. So Kahneman wrote this book about all those cool studies he worked on. The bad news is that these studies are widely recognized as awesome, are talked about... uhm, I didn't learn much new from this book. I'd already bumped into these ideas elsewhere. But if I hadn't already bumped into those ideas, I would have learned some great stuff. As it was, this was still a fun breezy read.