Studies on Hysteria is a book by Sigmund Freud and Josef Breuer, first published in 1895. It consists of a joint introductory paper (reprinted from 1893); followed by five individual studies of "hysterics" – Breuer's famous case of Anna O. (real name: Bertha Pappenheim), seminal for the development of psychoanalysis, and four more by Freud; and finishing with a theoretical essay by Breuer and a more practice-oriented one on therapy by Freud.