The Second Sex — Simone de Beauvoir (1949)

Simone de Beauvoir's *The Second Sex* (1949) is a seminal work in feminist philosophy, offering a comprehensive critique of patriarchy and the social construction of femininity. Originally published in French, the book spans 978 pages across two volumes, meticulously analyzing how societal forces like myth, history, and literature have historically enforced gender roles. It sold approximately 22,000 copies in its first week and has since been translated into 40 languages, despite being placed on the Vatican's List of Prohibited Books. Its enduring impact is evident in its influence on the second-wave feminist movement, inspiring figures such as Betty Friedan and Gloria Steinem. The central thesis, "One is not born, but rather becomes, a woman," highlights that gender is primarily a social construct rather than solely biological, and this statement has become a cornerstone of feminist thought.