This textbook has been received enthusiastically. "Bischof introduces to the primary questions, theories and insights of the field. Not restricting himself to presenting the generally acknowledged facts in form of a textbook, he critically challenges current knowledge. He scrutinizes the state of knowledge and explains why certain ideas have prevailed. Additionally he show links and connections and draws the attention to elements that still need clarification. For students of psychology an essential read in addition to the usual standart litrerature." (EKZ)