Studies on Hysteria is an 1895 book by Sigmund Freud, the founder of psychoanalysis, and the physician Josef Breuer. It consists of a joint introductory paper; followed by five individual studies of "hysterics" ? Breuer's famous case of Anna O., seminal for the development of psychoanalysis, and four more by Freud? including his evaluation of Emmy von N? and finishing with a theoretical essay by Breuer and a more practice-oriented one on therapy by Freud