The book "On Psychoanalysis: Five Lectures" by the Austrian psychologist and psychoanalyst Sigmund Freud is one of the most important and influential texts in world psychoanalytic literature. In this book, the author presents the basic principles of psychoanalytic theory, considering such aspects as the conscious and subconscious, psychic conflicts, sexuality, dreams, and the psychoanalytic method of treatment. Freud reveals the concept of unknown aspects of the human psyche and the influence of childhood on the further development of the personality. On Psychoanalysis: Five Lectures is a must-read for those interested in the depths of the human psyche and seeking a better understanding of themselves and others.