author
Docteur Jaf
A prolific French medical writer of the early 20th century, this author published under the pen names Docteur Jaf and Dr Caufeynon. His books mixed popular health advice with candid, often sensational discussions of sexuality, vice, and social behavior.
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About the author
Writing as Docteur Jaf, Jean Fauconney produced a long list of French popular-medical books in the late 19th and early 20th centuries. Bibliographic records from the Bibliothèque nationale de France connect the pseudonym to Fauconney and also link him to the pen name Dr Caufeynon.
His works covered marriage, hygiene, menstruation, syphilis, morphine and opium use, and several studies of sexuality. Titles associated with him include L'amour secret (1923) and L'art d'aimer (1928), along with earlier practical and provocative works aimed at a broad reading public.
Much about his personal life remains unclear from the sources readily available online, but his bibliography shows a writer deeply engaged with the moral, medical, and social debates of his era. Today, he is remembered mainly through these unusual and wide-ranging publications.