Roc Books is an imprint of Penguin Random House that specializes in publishing fantasy and science fiction novels. The imprint was founded in 1990 and has since published a wide range of books in the genre, from epic fantasy to space opera, and from contemporary fantasy to urban fantasy. Roc Books is known for publishing both bestselling authors and new voices in the industry, and it has a strong focus on fantasy and science fiction. Some notable authors published by Roc include Jim Butcher, Anne Bishop, and Ilona Andrews. The imprint is also known for its commitment to promoting diversity in fantasy and science fiction.