Why do teenagers dare adults? What really worries teenagers? Why are they prone to undue risk and what fears haunt them? What tests are their self-esteem subjected to and what should alert parents and educators? About mood and behavior disorders of adolescents, about their addictions and rebelliousness, as well as how and how adults can help children in this difficult period of their life - on the pages of the book of the famous psychotherapist G.V. Starshenbaum. This detailed guide contains tests for primary diagnosis and self-diagnosis, recommendations and exercises for self-help, agreed with a specialist. The book is written in simple, accessible language. It will be useful for studying and practicing psychologists, teachers, doctors and parents. Not a textbook on medicine. All recommendations should be agreed with the attending physician.