The Black Library is a division of Games Workshop devoted to publishing novels, art books, background books and graphic novels set in the Warhammer Fantasy world and the Warhammer 40,000 universe. Some of the more famous and popular titles include the Gaunt's Ghosts and Eisenhorn novels by Dan Abnett for Warhammer 40,000, and the Gotrek & Felix series by William King for Warhammer.
External Links
Official Black Library website