The work "Psychology of Sexuality" by the outstanding Austrian doctor, psychoanalyst and founder of the method of psychoanalysis Sigmund Freud (1856–1930), which appeared in 1905, made the impression of a grenade explosion on contemporaries and became a significant phenomenon not only in European science of that time , but also in social life. She drew the attention of many people to this virtually closed topic, thereby greatly contributing to changes in their perception of sexuality. For the first time, the scientist addressed the issue of children's sexuality, considered the nature of sexual desire and various sexual deviations - perversions.