First published in Germany in 1886, Psychopathia Sexualis was extremely successful as both a classic reference volume for psychiatrists and as a new form of pornographic literature for the sexually transgressive and perverse. Printed in seven languages and twelve editions during the author's lifetime, it was an influence on such notable figures as Sigmund Freud (a younger colleague of Krafft-Ebing's at the University of Vienna), painters Gustav Klimt and Egon Schiele, writers Arthur Schnitzler and Marcel Proust, and philosopher Georges Bataille and the surrealists. Psychopathia Sexualis is extraordinarily timeless in its factual depiction of the astonishing vagaries of sexual life. As a psychiatric text, it was one of the first books to extensively illuminate and define such subjects as sadism, masochism, fetishism and homosexuality; as a work of sexual literature, it has often been compared to the Marquis de Sade's classic, 120 Days of Sodom.