This book has helped me recognize various cognitive biases and heuristics that I or the people around me are demonstrating. Sometimes people say things that just "feel" wrong and this book has helped me identify and name why it feels wrong. It can get a little dry at times, but for the most part the research and examples are memorable. I also find the framework of the "two systems" to be a simple reminder to slow down and think about things that surprise/frustrate me before arriving at conclusions (or responding to that frustrating coworker :P).