This textbook gives a complete picture of modern knowledge in the field of human development psychology. The book is divided into eight parts and describes the features of psychology of different age periods in the following vectors: cognitive features, affective sphere, motivational sphere, behavioral features, features of the “I-concept”. Particular attention in the book is paid to the issues of age periodization, childhood and adolescent aggression. The composition of the author's team of the textbook is unique. Nine doctors and five candidates of psychological sciences took part in the work on it. Three of them are academicians and two are corresponding members of the Russian Academy of Education in the Department of Psychology. For a wide range of specialists in the field of humanities.