Martin E. P. Seligman

Martin E. P. Seligman is a renowned American psychologist and the founder of positive psychology, known for his groundbreaking work on learned helplessness, well-being, and the PERMA model. He served as the president of the American Psychological Association in 1998 and is currently the Fox Leadership Professor of Psychology at the University of Pennsylvania. Seligman has authored over 20 books, including 'Learned Optimism' and 'The Optimistic Child', which have significantly influenced the field of psychology.