Joan Didion is an American essayist, novelist, and screenwriter. She is best known for her literary journalism and memoirs, which explore the disintegration of American morals and cultural chaos. Her works often focus on the disintegration of American morals and cultural chaos. Didion is also a recipient of the National Book Award and the National Humanities Medal. She has written several novels, including Play It As It Lays (1970), A Book of Common Prayer (1977), and The Year of Magical Thinking (2005). She has also written numerous essays, including 'On Self-Respect' (1961) and 'Goodbye to All That' (1967).