In this international bestseller, the father of positive psychology draws on more than twenty years of clinical research to show you how to overcome depression, boost your immune system, and make yourself happier. "Vaulted me out of my funk.... So, fellow moderate pessimists, go buy this book." The New York Times Book ReviewSharing simple techniques anyone can practice, Dr. Seligman explains how to break an "I-give-up" habit, develop a more constructive explanatory style for interpreting your behaviour, and experience the benefits of a more positive interior dialogue. With advice on how to encourage optimistic behavior at school, at work and in children, Learned Optimism is both profound and practical, and valuable for every phase of life.