The indispensable life manual from the author of the international bestseller, The Art of Thinking Clearly. 52 intellectual short-cuts for wiser thinking and better decisions, at home and at work. They may not guarantee you a good life, but they'll give you a better chance. Since the dawn of civilization, we've been asking ourselves what it means to live a good life: how should I live, what will truly make be happy, how much should I earn, how should I spend my time? In the absence of a single simple answer, what we need is a toolkit of mental models, a guide to practical living.