The book "Sexual Life of a Child" by Albert Moll is one of the works that marked the beginning of the study of children's sexuality in psychology. In this work, the author examines in detail the development of sexual instincts in young children, examines the various stages of sexual identity formation, and openly discusses taboo topics related to childhood sexuality. The book provides a deep and scientifically based view of the current issue of sexualization of children and opens a discussion about important aspects that should be taken into account in education. "Sexual life of a child" is an important book that helps to understand the natural processes of the formation of sexual ideas in children and puts this problem in the context of psychological research.