Die sexuelle Revolution.

Die Sexualität im Kulturkampf ("sexuality in the culture war"), 1936 (published later in English as The Sexual Revolution), is a work by Wilhelm Reich. The subtitle is "zur sozialistischen Umstrukturierung des Menschen" ("for the socialist restructuring of humans"), the double title reflecting the two-part structure of the work.

The first part "analyzes the crisis of the bourgeois sexual morality" and the failure of the attempts of "sexual reform" that preserved the frame of capitalist society (marriage and family). The second part reconstructs the history of the sexual revolution that took place with the establishment of the Soviet Union since 1922, and which was opposed by Joseph Stalin in the late 1920s.

(Source: Wikipedia)