Conan the Barbarian is a 53-book series with 53 released primary works first released in 1932 with contributions by Robert E. Howard, L. Sprague de Camp, Lin Carter, Björn Nyberg, Robert E.Howard, Andrew J. Offutt, Karl Edward Wagner, Pohl Anderson, Robert Jordan, John Maddox Roberts, Leonard Carpenter, Steve Perry, Roland J. Green, Sean A. Moore, and Harry Turtledove.