El segundo sexo (The Second Sex) by Simone de Beauvoir is a foundational 1949 work of feminist philosophy, analyzing the social construction of women as "Other" and the "becoming" of womanhood, heavily influencing second-wave feminism. The text is divided into two parts covering external myths and internal lived experiences, which explore themes of existential freedom, economic independence, and the rejection of biological determinism.
You can purchase the book from Barnes & Noble or read a summary on SparkNotes . Simone de Beauvoir - The Decision Lab El segundo sexo - Simone de Beauvoir.epub