The book by a famous psychotherapist and psychologist with more than 40 years of professional experience is an extensive encyclopedia in which every reader (from an amateur to a future professional in the field of psychology) will find answers to questions of interest. Here are criteria for diagnosing conditions and describe methods of individual psychotherapy taking into account personal characteristics, including techniques for family and group work and recommendations in the treatment of various disorders: sexual, psychosomatic, personality disorders, etc. Typical mistakes of a novice psychotherapist are analyzed and indicated how avoid them. Practical examples make this book an indispensable tool for both students and practitioners.