Sigmund Freud (1856-1939), an Austrian psychoanalyst and the founder of psychoanalysis, spent much time studying the various psychological traumas of childhood. According to Freud, each person carries these injuries in themselves and they have a determining influence on their life.Freud's theory was developed and supplemented by Erik Erikson (1902 -1994), a German psychologist and psychoanalyst who lived in the United States for many years. According to Erickson, the injuries received in childhood are supplemented by the peculiarities of life in the modern world, when a person does not always manage to reveal his creative abilities and realize himself as a professional. As a result, life seems to him a waste of energy and a series of missed opportunities.The book contains the most significant works of Sigmund Freud and Erik Erikson on this topic.