In the book, readers will find a psychological and pedagogical description of the individual uniqueness of the development of each child, the uniqueness of the paths of personality formation. Adults will become familiar with the characteristics of children of early, preschool, primary school, and adolescence, will be able to navigate the pace of maturation of their own sons and daughters, will develop an independent attitude towards difficult, crisis periods of their development, will learn what the direct influence of parental attitudes, expectations, positions on the formation of psychological the sex of the child, the formation of his masculinity or femininity. Special sections of the book are devoted to such important parameters of individuality as temperament and character.