- Briney, Robert E. Introduction. Lord of the Dead. By Robert E. Howard. West Kingston, RI: Grant, 1981. 9-17. Print. [OOP]
- Cerasini, Marc A. and Charles Hoffman. Robert E. Howard: Starmont Reader’s Guide 35. Mercer Island, WA: Starmont, 1987. Print. [OOP]
- de Camp, L. Sprague, Catherine Crook de Camp and Jane Whittington Griffin. Dark Valley Destiny: The Life of Robert E. Howard. 1961. New York: Bluejay, 1983. Print. [OOP]
- Herron, Don. “A Black Wind off River Street.” Introduction. Graveyard Rats and Others. By Robert E. Howard. Ed. Paul Herman. Holicong, PA: Wildside, 2003. 7-13. Print.
- Herron, Don, ed. The Dark Barbarian: The Writings of Robert E. Howard: A Critical Anthology. Westport: Greenwood, 1984. Print.
- Howard, Robert E. “Graveyard Rats.” Thrilling Mystery (Feb. 1936). Rpt. in Graveyard Rats and Others. Ed. Paul Herman. Holicong, PA: Wildside, 2003. 135-165. Print.
- —. “Names in the Black Book.” Super-Detective Stories (Feb. 1934). Rpt. in Graveyard Rats and Others. Ed. Paul Herman. Holicong, PA: Wildside, 2003. 93-134. Print.
- —. “Rogues in the House.” Weird Tales (Jan. 1934). Rpt. in The Coming of Conan the Cimmerian. New York: Random, 2003. 279-300. Print.
- Knight, George. “Robert E. Howard: Hard-Boiled Heroic Fantasist.” Herron 117-133.
- Lord, Glenn. “Robert E. Howard: Professional Writer.” Herron 135-147.
- MacShane, Frank. The Life of Raymond Chandler. New York: Penguin, 1976. Print. [OOP]
- Ruber, Peter. “Robert E. Howard.” Arkham’s Masters of Horror. Sauk City, WI: Arkham, 2000. 81-86. Print. [OOP]