New American Library (NAL) is a publisher of popular fiction and nonfiction books. It was founded in 1948 and is currently an imprint of Penguin Random House. NAL has a reputation for publishing bestselling authors and books in a wide range of genres, including romance, mystery, science fiction, fantasy, and self-help. NAL has a long history of publishing the works of popular authors such as Ray Bradbury, Agatha Christie, and Stephen King. NAL is known for its Signet and Mentor imprints, which have been publishing mass-market paperbacks since the 1940s and 1950s respectively. NAL also has a strong backlist of classic and contemporary literature, including works by authors such as F. Scott Fitzgerald and J.D. Salinger. NAL has a diverse range of books and is well known for its mass-market paperbacks.