Principal work Richard von Krafft-Ebing
the first edition of psychopathia sexualis (1886), richard von krafft-ebing. krafft-ebing s principal work psychopathia sexualis: eine klinisch-forensische studie (sexual psychopathy: clinical-forensic study), first published in 1886 , expanded in subsequent editions. last edition hand of author (the twelfth) contained total of 238 case histories of human sexual behaviour. this book popularized terms sadism (derived brutal sexual practices depicted in novels of marquis de sade) , masochism (derived name of leopold von sacher-masoch). krafft-ebing coined term anilingus in book. psychopathia sexualis forensic reference book psychiatrists, physicians, , judges. written in academic style, introduction noted that, discourage lay readers, author had deliberately chosen scientific term title of book , had written parts of in latin same purpose. psychopathia sexualis 1 of first books sexual practices studied homosexuality/bisexuality. proposed consideration of mental state of sex criminals in