Kathy Acker (née Karen Lehmann) (18 April 1947 – 30 November 1997) was an American experimental novelist, punk poet, playwright, essayist, postmodernist and sex-positive feminist writer. She was strongly influenced by the Black Mountain School, William S. Burroughs, David Antin, French critical theory, philosophy, and pornography. Born to a wealthy Jewish family in Manhattan, New York City, Acker took her last name from her first husband, Robert Acker; though born as Karen, she was known as Kathy by her friends and family.

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