What You Can Change _. And What You Can't - Martin E. Seligman
MARTIN E. P. SELIGMAN, PH.D.
What You Can Change . . .
and What You Can’t
Martin E. P. Seligman, Ph.D., professor of psychology at the University of Pennsylvania and a past president of the American Psychological Association, is a leading expert on motivation and emotion and an authority on learned helplessness. He is the director of the Positive Psychology Center at the University of Pennsylvania. His many books include Authentic Happiness and Learned Optimism. Dr. Seligman’s research has be ...