An interpretation of evolution in the field of depth psychology in terms of founder Freud and three disciples who broke away to develop new insights Adler, Jung and Rank. There is attention to the personal lives of the men as influences on their work -- for example, Freud's family situation as tending to Oedipal explanation, Adler's leading to ideas on countering inferiority, Jung's reaction to dream content. Setting forth the divergent findings, the author points out that the three men went beyond psychology, beyond the rational to mystic or spiritual dimensions in their discovery of man. A Science Bookclub and Readers' Subscription choice, definitely for serious initiates.