Judith Butler is a prominent American philosopher and gender theorist known for her groundbreaking work on feminist and queer theory. Born in 1956, Butler is a professor at the University of California, Berkeley, where she holds the position of Maxine Elliot Professor in the Department of Comparative Literature and the Program of Critical Theory. She rose to prominence with her book "Gender Trouble" in 1990, which challenged conventional views on gender and sexuality. Butler's work explores the performative nature of gender, arguing that it is a social construct rather than a fixed identity. Her contributions to the fields of philosophy and gender studies have had a profound impact on academic discourse and activism worldwide.