This beautifully articulated picture of the complex process of psychological development, focused particularly around pregnancy, childbirth, and the early months of life, is a welcome contribution. The authors' purpose in integrating infancy research and infant psychiatry into theory and clinical work is early prevention. They provide a wealth of information to the practicing psychoanalyst about the purposes and functions of different infant behaviors, creatively using the research to highlight the complexity and the intricate process of early object relations development. One of the difficulties in the clinical application of developmental research for the nonresearcher is that individual studies often seem dry, tedious, or irrelevant. Brazelton and Cramer have assimilated and synthesized a large body of developmental research in a highly readable,