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Preceding Freud's "Three Contributions to the Theory of Sex" by more than 20 years, Krafft-Ebing's "Psychopathia Sexualis" pioneered the psychological study of sexual behavior. This classic 19th-century work on sexual aberration addressed such previously taboo subjects as bestiality, cunnilingus and fellatio, fetishism, incest, masochism, masturbation, nymphomania, and sadism, making it the first serious attempt to catalog and define such "deviations." Also discusses: the importance of female sexual pleasure, consideration of the mental states of sexual offenders in judging their actions, and the first scientific discussion of homosexuality. He introduced ideas and concepts that greatly influenced the works of Alfred Kinsey and Masters and Johnson.

Controversial for decades, now finally back in print, this classic 19th-century work on so-called sexual deviation is the pioneering collection of case studies that cataloged and defined perversion--from fetishism to incest to homosexuality and much more. Informative and entertaining, PSYCHOPATHIA SEXUALIS is considered one of the most important documents in humankind's modern efforts to understand itself.