Freud's excellent lectures introducing the key pillars of psychoanalytic practice and theory are presented here complete. Delivered between 1915 and 1917, the lectures detail theories pioneered by Freud. Delivered in the later part of his career, these lectures are a retrospective summary of the ideas which revolutionized psychology in the early 20th century. It is here that the fully-formed ideas are expressed clearly, with the added benefit of experiences Freud had in employing his methods to treat sufferers of mental illness and neuroses. The translation of the lectures to English was accomplished by Freud's contemporary G. Stanley Hall. Since first appearing in 1920, this rendition of the lectures has been praised for accurately relaying the concepts, theory and practices behind Freudian psychoanalysis. This edition also contains an introductory preface by Hall, who explains the intellectual context and rival theories present in the-then fledgling scientific discipline of psychology.