Judith Butler (born February 24, 1956) is an American philosopher and gender theorist whose work has influenced political philosophy, ethics and the fields of third-wave feminist, queer and literary theory. Since 1993, she has taught at the University of California, Berkeley, where she is now Maxine Elliot Professor in the Department of Comparative Literature and the Program of Critical Theory. She is also the Hannah Arendt Chair at the European Graduate School. Butler is best known for her books *Gender Trouble: Feminism and the Subversion of Identity* (1990) and *Bodies That Matter: On the Discursive Limits of Sex* (1993), in which she challenges conventional notions of gender and develops her theory of gender performativity. **Source**: <a href="https://en.wikipedia.org/wiki/Judith_Butler">Judith Butler</a> on Wikipedia (<a href="https://en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License">CC BY-SA 3.0</a>).