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Martin E.P. Seligman
11/08/1942 - Martin E.P. Seligman is an American psychologist, educator, and author of self-help books. He is known for his theory of 'learned helplessness' and is considered a key figure in the Positive Psychology movement. Seligman is the Zellerbach Family Professor of Psychology in the University of Pennsylvania's Department of Psychology.United States
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