Presented for practitioners is a history of the development of abnormal psychology. Areas covered include the following: Early medical concepts, ideas carried over from literature, early treatment of the mentally ill, development of the psychological viewpoint, Freud's psychoanalytic theory, Jung's analytic theory, the individual psychology of Alfred Adler, the Neo-Freudians, the contributions of mental testing to abnormal psychology, the psychosomatic or holistic viewpoint, and the brief history of clinical psychology. (Author)