With the exception of infancy, adolescence is the most radical of all developmental periods. In the few years between puberty and adulthood, one's sense of oneself must adapt to physical changes of size, shape, strength and to full sexual and reproductive capacity. The Adolescent Department at the Tavistock Clinic, in its long history has been engaging with young people and their families when the strains prove too great. In this book, staff of the Adolescent Department describe a range of disturbances from adjustment crises to anorexia nervosa and psychosis.