Jean Hanff Korelitz is an American author known for her novels, essays, and plays. She gained significant recognition for her book, You Should Have Known, which was adapted into the HBO series The Undoing, starring Nicole Kidman and Hugh Grant. Korelitz's writing often explores themes of identity, relationships, and the complexities of human behavior. In addition to her fiction work, Korelitz has written several other novels, including Admission and The Devil and Webster. She is also a co-founder of the Atheneum, a literary organization that promotes the work of authors. Her contributions to literature have earned her a dedicated readership.