Angela Yvonne Davis (born January 26, 1944) is an American political activist, philosopher, academic, and author. She is a professor emerita at the University of California, Santa Cruz. Ideologically a Marxist, Davis was a member of the Communist Party USA until 1991, after which she joined the breakaway Committees of Correspondence for Democracy and Socialism. She is the author of over ten books on class, feminism, and the U.S. prison system.