The manual provides basic modern information in the field of general and private psychiatry and neurology of children. In the first part, the semiotics of nervous and mental diseases are presented in alphabetical order. In the second part, the material is presented according to the nosological-group principle. It covers the etiology, pathogenesis, pathomorphology, clinic, diagnosis and treatment of diseases mainly of a neurological or psychiatric profile, as well as of a bidisciplinary nature - hereditary diseases, epilepsy, methods of examination and treatment, etc.