Erich Fromm was a 20th century sociologist, psychoanalyst, and something of a polymath who studied and published work in a diverse array of fields, including psychology, anthropology, religion, ethics, psychoanalysis, sociology, and philosophy. His psychological writings intersperse politics with philosophy, and Fromm is viewed by many as the founder of political psychology. Fromm was a fierce social critic who wrote extensively about political philosophy. He is also known for his criticisms of the work of Sigmund Freud. Fromm noted that some of Freud’s early work conflicted with his later work, and he lambasted Freud for his misogyny.Two of Fromm’s most important works, Escape from Freedom and Man for Himself, combine elements of philosophy and psychology, laying the foundation for political psychology. The Art of Loving was his most commercially successful book.