Carpenter, Humphrey. J.R.R. Tolkien: A Biography. New York: Houghton Mifflin, 2000.

———. The Inklings: C.S. Lewis, J.R.R. Tolkien, Charles Williams, and Their Friends. London: Allen and Unwin, 1978.

Hammond, Wayne G. J.R.R.Tolkien: A Descriptive Bibliography. Winchester, England: St. Paul’s Bibliographies, 1993.

Johnson, Judith. J.R.R. Tolkien: Six Decades of Criticism. Westport, Connecticut: Greenwood Press, 1986.

Kocher, Paul Harold. The Master of Middle-Earth: The Fiction of J.R.R. Tolkien. Boston: Houghton Mifflin, 1972.

Tolkien, Christopher. The History of The Lord of the Rings . New York: Mariner Books, 2000.

Tolkien, J.R.R. The Silmarillion. New York: Houghton Mifflin, 1977.

———. The Book of Lost Tales. New York: Del Rey, 1992.

———. The Letters of J.R.R. Tolkien. New York: Houghton Mifflin, 2000.

Tyler, J.E.A. The Tolkien Companion. New York: St. Martin’s Press, 1976.

West, Richard C. Tolkien Criticism: An Annotated Checklist. Kent, Ohio: The Kent State University Press, 1991.