This book is based on the experience of a seminar on the study of the works of Sigmund Freud, organized by Jean-Michel Kinodo in 1998 as part of the training of specialists at the Psychoanalytic Center. Raymond de Saussure (Geneva). Each chapter of the book is devoted to a separate work of Freud, and the chronological principle of presentation allows the reader to present the course of thought of the founder of psychoanalysis, and the consistency of the presentation of the material forms a holistic impression of the work under study.