Martin E.P. Seligman

Seligman is the Zellerbach Family Professor of Psychology at the University of Pennsylvania's Department of Psychology. He was previously the Director of the Clinical Training Program in the department. Seligman was elected President of the American Psychological Association by the widest margin in its history and served in that capacity during the 1998 term. 

He is the founding editor-in-chief of Prevention and Treatment Magazine (the APA electronic journal) and is on the board of advisers of Parents. Seligman has written about positive psychology topics such as The Optimistic Child, Child's Play, Learned Optimism, Authentic Happiness," and in 2011, "Flourish."Seligman is the Zellerbach Family Professor of Psychology at the University of Pennsylvania's Department of Psychology. 

He was previously the Director of the Clinical Training Program in the department. Seligman was elected President of the American Psychological Association by the widest margin in its history and served in that capacity during the 1998 term. He is the founding editor-in-chief of Prevention and Treatment Magazine (the APA electronic journal) and is on the board of advisers of Parents. Seligman has written about positive psychology topics such as The Optimistic Child, Child's Play, Learned Optimism, Authentic Happiness," and in 2011, "Flourish."