Philosopher Judith Butler has been influential across many disciplines, and sociology is no stranger to her works. She first drew widespread attention with her book Gender Trouble. In it, Butler questioned the supposed naturalness of both the male/female sex binary and the differences between men and women. Not natural at all, she argued, gender is performed. Butler has written over a dozen books and is a great scholar to be able to quote at parties if you want to impress upon others that you know your shit.
T-shirt, signed by Butler herself, found at Flexner Book Club Blog.Lisa Wade is a professor of sociology at Occidental College. You can follow her on Twitter and Facebook.