The Encyclopœdia of Sexual Knowledge
book by Arthur Koestler

The Encyclopaedia of Sexual Knowledge, under the editorship of Dr. Norman Haire (1892–1952), is the first of a trilogy of sexual encyclopaedias by Arthur Koestler writing under the pen name of ‘Dr. A. Costler’. It is the English version, published by Koestler's cousin Francis Aldor in 1934, of the book L'encyclopédie de la vie sexuelle that Koestler in 1933 wrote, together with "A. Willy" (the pseudonym of his other cousin Willy Aldor) and the German Dr. Ludwig Levy-Lenz. The second book is Sexual Anomalies and Perversions, Physical and Psychological Development, Diagnoses and Treatment. The title of the third book is, in the original French edition of 1939, L'Encyclopédie de la famille. This third book was subsequently translated into English and published under various titles and with changes to the structure and text of the original edition. The name of ‘Dr. Costler’ (or 'A. Coester') as the author or co-author of the book is omitted from later editions.
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Reception evidence should be dated and situated: later canonical status may differ sharply from the work’s initial circulation. The source revision retrieved here is dated Sep 30, 2023. The linked authority identifier is Q7732040. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1892, 1952, 1934 and 1933.
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This entry incorporates text from “The Encyclopœdia of Sexual Knowledge” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.