The Second Sex (French: Le Deuxième Sexe, June 1949) is one of the best-known works of the French existentialist Simone de Beauvoir. It is a work on the treatment of women throughout history and often regarded as a major work of feminist literature.
In it she argues that women throughout history have been defined as the "other" sex, an aberration from the "normal" male sex.[1] Beauvoir wrote the book after attempting to write about herself. The first thing she wrote was that she was a woman, but she realized that she needed to define what a woman was, which became the intent of the book.