This book makes the heretical claims that Freud"s central postulate, the unconscious mind, does not exist; that his theories were based on pathological phenomena and that Freud himself, when formulating these theories, was under the influence of a highly toxic drug. This book fully substantiates these bold claims with the use of case histories, current medical knowledge and most important of all, letters written by Freud to Wilhelm Fliess, his closest friend during the last decade of the 19th century -- the period of time when he was formulating the ideas that are the basis of psychoanalysis.