An important book, written by one of our best known psychologists. In it he examines afresh the psychological basis of religious experience. He pays particular attention to the religion of childhood and adolescence. His chapter on the religion of youth is based on case studies made at Harvard and Radcliffe. His findings are that while the need for a religious tendency to turn away from the theological beliefs of their parents in the direction of a religion in which ethical behavior rather than theological belief is emphasized. In dealing with the religion of maturity the author stresses the mutual relationship between psychology and religion. This is a valuable book for theologians and ministers and religious educators as well as for psychologists.