Claim: Michalina Wisłocka is a Polish Gynecologist, sexologist, and author who wrote Sztuka kochania which became a bestseller.
Evidence: Michalina Anna Wisłocka ([mʲi.xaˈlʲi.na ˈan̪ːa viˈswɔt͡ska; née Braun; 1 July 1921 – 5 February 2005) was a Polish gynecologist, sexologist, and author of Sztuka kochania (verbatim: The Art of Loving, English edition A Practical Guide to Marital Bliss, 1978), the first guide to sexual life in a communist country. Her book became a bestseller, with a total circulation of 7 million copies, and started greater openness about matters of sex and sex life in Poland.