Developmental theory is the essence of any psychodynamic psychother apy, and certainly of psychoanalysis. It is through an understanding of progressive life events, and the way these events relate to associated biological and social events, that we come to understand both psycho pathology and psychological strengths. For a long time we have needed a clinically oriented book that surveys normal development in both childhood and adulthood. This book should be particularly helpful to all mental health professionals whose daily work requires a constant awareness and appraisal of devel opmental issues. Dr. Colarusso has integrated and summarized a tremen dous amount of theoretical, empirical, and clinical material in a format that makes it come alive through clinical examples. This book should be of great interest to all students of human behav ior as well as to seasoned clinicians. SHERWYN M. WOODS, M. D. , PH. D. vii Preface Each year as I gave a lecture series on child and adult development to the adult and child psychiatric residents at the University of California at San Diego, someone inevitably would ask, "Is there a book that I could understand that has all of this information in it?" I would reply that I did not know of any single source, but I could refer the person to many articles and books on development.