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In page Jeanne Mammen:

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Many of her works also centered around homosexuality and challenging traditional gender roles. She included 14 of her illustrations in Curt Moreck's Guide to Depraved Berlin, published in 1931, a guide to the lesbian and gay scene in Berlin.[3] Her contributions depicted prostitutes, women-only nightclubs, and bars of the city.[3] She also provided illustrations for Les Chansons de Bilitis, a collection of lesbian love poems.[4] According to Lydia Bohmert, in contrast with her contemporaries, Mammen "viewed the homosexual subculture with understanding".[citation needed]