In this authoritative volume, sponsored by the International Association for Child Psychiatry and Allied Professions, leading clinicians and researchers focus on salient psychological and psychiatric aspects of adolescence, and on the especially exacerbated problems of youth in this period of rapid technological and social change. These original contributions, by thirty-two distinguished specialists - including Anna Freud, Jean Piaget, Fritz Redl, and Theodore Lidz - embody the latest advances in our knowledge of this turbulent period of life.