Casey Cep is an American author and journalist. Cep is a staff writer at The New Yorker, and her work has appeared in The New York Times, The Paris Review, The New Republic, and other publications. Cep's debut non-fiction book, published by Knopf, (2019), tells the story of how Harper Lee worked on, but ultimately failed to publish, an account of a murder trial that happed in Alabama in 1977.