Asimov, Isaac. Asimov on Science Fiction. New York: Doubleday, 1980. A collection of Asimov's essays and reviews.

Gunn, James. Isaac Asimov: The Foundations of Science Fiction. New York: Oxford University Press, 1982. An important critical study of Asimov's fiction.

Olander, Joseph D., and Martin H. Greenberg, eds. Isaac Asimov. New York: Taplinger, Edinburgh, and Harris, 1977. A collection of critical essays by various writers.

Patrouch, Joseph F., Jr. The Science Fiction of Isaac Asimov. New York: Doubleday, 1974. A valuable analysis of Asimov's science fiction, with special attention to literary techniques.