Frederick, John T. "Costain and Company: The Historical Novel Today."

College English 15 (April 1954): 373379. Analyzes Costain's work in the context of other historical-based writing.

Martine, James J., ed. Dictionary of Literary Biography. Vol. 9, American Novelists 1910-1945. Detroit: Gale Research, 1981. Contains a biographical entry on Costain.

Van Gelder, Robert. "Interview with a Best-Selling Author: Thomas B. Costain." Cosmopolitan 18 (October 1947): 201. Costain discusses his method of writing historical novels.