Only five years stand between the publication of Breuer and Freud’s Studies on Hysteria, published in 1895, and Freud’s Interpretation of Dreams, which appeared in 1900. The history of thought does not offer many examples of so profound a change taking place in one man’s thinking within such a short span of time. Studies on Hysteria is a book written by two neurologists, addressed to fellow physicians who treat patients suffering from hysteria. The book takes its place comfortably beside the works of other physicians, such as Charcot, Janet and Bernheim.