Psychopathia sexualis
Richard von Krafft-Ebing, Krafft/, Charles Gilbert Chaddock, Francis Joseph Rebman
1886
This seminal work, originally published in 1886, meticulously documents and categorizes a wide range of sexual deviations and perversions observed in case studies of male patients. Krafft-Ebing, through extensive clinical accounts, explores the psychopathology of sexual desire, including what he termed "contrary sexual instinct" (homosexuality) and other paraphilias, linking them to neurological and psychological abnormalities. The book offers a foundational, albeit dated, perspective on the early understanding of sexual disorders and their intersection with criminal behavior and societal norms.