Object relations, which emphasizes the importance of the preoedipal period and the infant-mother relationship, is considered by many analysts to be the major development in psychoanalytic theory since Freud. In this reinterpretation of its history Peter L. Rudnytsky focuses on two pivotal figures: Otto Rank, one of Freud's original and most brilliant disciples, who later broke away from psychoanalysis, and D. W. Winnicott, the leading representative...