Anderson, Poul. Introduction to The Best of L. Sprague de Camp. New York: Ballantine, 1978: ix-xv. Anderson provides an admiring overview of de Camp's career and style.

Beetz, Kirk H. "L. Sprague de Camp." In Popular World Fiction: 1900-Present. Edited by Walton Beacham and Suzanne Niemeyer. Washington, DC: Beacham Publishing, 1987: 415-427.

Provides an account of de Camp's career and critical reception, with close readings of Lest Darkness Fall, Rogue Queen, and The Goblin Tower.

— "L. Sprague de Camp." In Beachant's Popular Fiction: 1991 Update.

Edited by Walton Beacham, et al. Washington, DC: Beacham Publishing, 1991: 352-359. Provides close readings of The Stones of Nomoru and The Honorable Barbarian.

"de Camp, L(yon) Sprague." In Contemporary Authors. New Revision Series. Vol. 20. Edited by Linda Metzger and Deborah A. Straub. Detroit: Gale Research, 1987: 128-130. A brief summary of de Camp's career with a listing of his books.