Anderson, Poul. "How to Build a Planet." In Turning Points: Essays on the Art of Science Fiction. Edited by Damon Knight. New York: Harper and row, 1977. Anderson explains how to create believable planets for science fiction.

——.'Science Fiction and History." In Amazing Stories 63 (January 1989): 43-49. Anderson here discusses how the past may be used to suggest possible futures.

"Anderson, Poul." In Contemporary Authors. Vol. 34. Edited by James G. Lesniak. Detroit: Gale Research, 1991, pp. 17-21. Lists Anderson's writings and awards, with a summary of critical opinion about Anderson's work.

Beetz, Kirk H. "Poul Anderson." In Beacham's Encyclopedia of Popular Fiction, Vol. 1, Biography and Resources. Ed. Kirk H. Beetz. Osprey, FL: Beacham Publishing, 1996, pp.

43-46. Summarizes Anderson's career and critical reception. Elsewhere in the encyclopedia are analyses of individual works by Anderson.

Miesel, Sandra. Against Time's Arrow: The High Crusade of Poul Anderson.

San...