Ellison, Harlan, "Ellison on Ellison," in Locus, Vol. 47, No. 1, July 2001, pp. 6—10.

In this article, Ellison reviews his long career, noting changes in his art and in his beliefs, providing an excellent background for the study of his fiction.

Erlich, Richard D., and Thomas P. Dunn, eds., Clockwork Worlds: Mechanized Environments in SF, Greenwood Press, 1983.

In addition to including a chapter on Harlan Ellison, this collection of essays considers the larger subject of mechanical environments and science fiction responses to technology.

James, Edward, and Farah Mendlesohn, eds., The Cambridge Companion to Science Fiction, Cambridge University Press, 2003.

This is an excellent collection of essays concerning such topics as gender, politics, and race in science fiction as well as illustrating a variety of critical approaches to the genre.

Porter, Andrew, ed. The Book of Ellison, ALGOL Press, 1978.

Porter has assembled an introduction by famed science-fiction writer Isaac...