The book "Developmental Psychology of Psychopathology" by Samuel Vaknin examines the relationship between the psychological development of the individual and the emergence of pathological conditions. The author analyzes deviations in mental health at different stages of life and their relationship with personality development. The book helps to understand what factors can contribute to the emergence of psychopathology during the interaction of the individual with the environment. Vaknin puts forward interesting and weighty theses that stimulate the reader to look deeper into the issues of psychology and pathology.