This is volume I of “Sadism And Masochism”, a 1929 work by Wilhelm Stekel that explores the psychology of sadomasochism and related subjects. Wilhelm Stekel (1868 – 1940) was an Austrian physician and psychologist, as well as one of Freud’s earliest followers. Other notable works by this author include: “The Interpretation of Dreams” (1943), “The Technique of Analytical Psychotherapy” (1950), and “Impotence in the Male” (1927). Contents include: “The Polyphony of Thought”, “The Psychology of Hatred and of Cruelty”, “The Theory of the Resistance”, “The Definition of Sadism and Masochism”, “Relation of Sadomasochism to Homosexuality”, “Sadomasochism and Infantilism”, etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new biography of the author.