أين ولد مارتن سليجمان ؟
Martin Elias Peter "Marty" Seligman (; born August 12, 1942) is an American psychologist, educator, and author of self-help books. Seligman is a strong promoter within the scientific community of his theories of positive psychology and of well-being. His theory of learned helplessness is popular among scientific and clinical psychologists. A "Review of General Psychology" survey, published in 2002, ranked Seligman as the 31st most cited psychologist of the 20th century.
Martin Elias Peter "Marty" Seligman (; born August 12