By Author
Becker, Alida., ed. The Tolkien Scrapbook. Philadelphia, PA: Running Press, 1978.
Bloom, Harold., ed. Classic Fantasy Writers. New York, NY: Chelsea House Publishers, 1994.
Chance, Jane. Lord of the Rings: The Mythology of Power. New York, NY: Twayne Publishers, 1992.
——— Lord of the Rings: The Mythology of Power. Lexington, KY: The University Press of Kentucky, 2001.
Clark, George, and Daniel Timmons., ed. J.R.R. Tolkien and His Literary Resonances. Westport, CN: Greenwood Press, 2000.
Curry, Patrick. Defending Middle-Earth. New York, NY: St. Martin's Press, 1997.
Day, David. Tolkien: The Illustrated Encyclopaedia. New York, NY: MacMillian Publishing Company, 1991.
——— The Hobbit Companion. Hong Kong, HK: Pavilion Books Limited, 1997.
Duriez, Colin. The J.R.R. Tolkien Handbook. Grand Rapids, MI: Baker Book House, 1992.
——— Tolkien and The Lord of the Rings: A Guide to Middle-earth. London, GB: HiddenSpring, 2001.
Flieger, Verlyn. A Question of Time: J.R.R. Tolkien's Road to Faerie. Kent, OH: The Kent State University Press, 1997.
Fonstad, Karen Wynn. The Atlas of Middle-Earth. Boston, MA: Houghton Mifflin Company, 1981.
——— The Atlas of Middle-Earth. Boston, MA: Houghton Mifflin Company, 1991.
Green, William H. The Hobbit: A Journey Into Maturity. New York, NY: Twayne Publishers, 1994.
Hammond, Wayne G., and Douglas A. Anderson. J.R.R. Tolkein: A Descriptive Bibliography. New Castle, DE: Oak Knoll Books, 1993.
Hardy, Gene B. The Lord of the Rings and The Hobbit. Lincoln, NE: Cliffs Notes, 1996.
Helms, Randel. Tolkien's World. Boston, MA: Houghton Mifflin Company, 1974.
Isaacs, Neil D., and Rose A. Zimbardo., ed. Tolkien and the Critics: Essays on J.R.R. Tolkien's The Lord of the Rings. Notre Dame, IN: University of Notre Dame Press, 1970.
——— and Rose A. Zimbardo., ed. Tolkien: New Critical Perspectives. Lexington, KY: The University Press of Kentucky, 1981.
Knight, Gareth. The Magical World of the Inklings. Longmead, GB: Element Books Limitied, 1990.
Kocher, Paul H. A Reader's Guide to the Silmarillion. Boston, MA: Houghton Mifflin Company, 1980.
Noel, Ruth S. The Languages of Tolkien's Middle-earth. ??, ??: Houghton Mifflin Company, 1980.
Pearce, Joseph., ed. Tolkien: A Celebration. London, GB: Harper Collins, 1999.
Ready, William. The Tolkien Relation. Chicago, IL: Henry Regnery Company, 1968.
Rogers, Ivor, and Deborah Rogers. J.R.R. Tolkien: A Critical Biography. New York, NY: Hippocrene Books, Inc., 1980.
Shippey, T.A. The Road to Middle-Earth. Boston, MA: Houghton Mifflin Company, 1983.
——— J.R.R. Tolkien: Author of the Century. New York, NY: Houghton Mifflin Company, 2000.
Sibley, Brian, and John Howe. The Map of Tolkien's Middle-Earth. London, GB: Harper-Collins, 1996.
Stanton, Michael N. Hobbits, Elves, and Wizards. New York, NY: Palgrave, 2001.
Tolkien, Christopher., ed. J.R.R. Tolkien: The Monsters and the Critics and Other Essays. Boston, MA: Hughton Mifflin Company, 1984.
By Title
A Question of Time: J.R.R. Tolkien's Road to Faerie. Verlyn Flieger, Kent, OH: The Kent State University Press, 1997.
A Reader's Guide to the Silmarillion. Paul H. Kocher, Boston, MA: Houghton Mifflin Company, 1980.
Classic Fantasy Writers. Harold Bloom., ed., New York, NY: Chelsea House Publishers, 1994.
Defending Middle-Earth. Patrick Curry, New York, NY: St. Martin's Press, 1997.
Hobbits, Elves, and Wizards. Michael N. Stanton, New York, NY: Palgrave, 2001.
J.R.R. Tolkein: A Descriptive Bibliography. Wayne G. Hammond with Douglas A. Anderson, New Castle, DE: Oak Knoll Books, 1993.
J.R.R. Tolkien and His Literary Resonances. George Clark and Daniel Timmons., ed., Westport, CN: Greenwood Press, 2000.
J.R.R. Tolkien: A Critical Biography. Ivor Rogers and Deborah Rogers, New York, NY: Hippocrene Books, Inc., 1980.
J.R.R. Tolkien: Author of the Century. T.A. Shippey, New York, NY: Houghton Mifflin Company, 2000.
J.R.R. Tolkien: The Monsters and the Critics and Other Essays. Christopher Tolkien., ed., Boston, MA: Hughton Mifflin Company, 1984.
Lord of the Rings: The Mythology of Power. Jane Chance, New York, NY: Twayne Publishers, 1992.
Lord of the Rings: The Mythology of Power. Jane Chance, Lexington, KY: The University Press of Kentucky, 2001.
The Atlas of Middle-Earth. Karen Wynn Fonstad, Boston, MA: Houghton Mifflin Company, 1981.
The Atlas of Middle-Earth. Karen Wynn Fonstad, Boston, MA: Houghton Mifflin Company, 1991.
The Hobbit Companion. David Day, Hong Kong, HK: Pavilion Books Limited, 1997.
The Hobbit: A Journey Into Maturity. William H. Green, New York, NY: Twayne Publishers, 1994.
The J.R.R. Tolkien Handbook. Colin Duriez, Grand Rapids, MI: Baker Book House, 1992.
The Languages of Tolkien's Middle-earth. Ruth S. Noel, ??, ??: Houghton Mifflin Company, 1980.
The Lord of the Rings and The Hobbit. Gene B. Hardy, Lincoln, NE: Cliffs Notes, 1996.
The Magical World of the Inklings. Gareth Knight, Longmead, GB: Element Books Limitied, 1990.
The Map of Tolkien's Middle-Earth. Brian Sibley and John Howe, London, GB: Harper-Collins, 1996.
The Road to Middle-Earth. T.A. Shippey, Boston, MA: Houghton Mifflin Company, 1983.
The Tolkien Relation. William Ready, Chicago, IL: Henry Regnery Company, 1968.
The Tolkien Scrapbook. Alida Becker., ed., Philadelphia, PA: Running Press, 1978.
Tolkien: A Celebration. Joseph Pearce., ed., London, GB: Harper Collins, 1999.
Tolkien and the Critics: Essays on J.R.R. Tolkien's The Lord of the Rings. Neil D. Isaacs and Rose A. Zimbardo., ed., Notre Dame, IN: University of Notre Dame Press, 1970.
Tolkien and The Lord of the Rings: A Guide to Middle-earth. Colin Duriez, London, GB: HiddenSpring, 2001.
Tolkien: New Critical Perspectives. Neil D. Isaacs and Rose A. Zimbardo., ed., Lexington, KY: The University Press of Kentucky, 1981.
Tolkien's World. Randel Helms, Boston, MA: Houghton Mifflin Company, 1974.
Tolkien: The Illustrated Encyclopaedia. David Day, New York, NY: MacMillian Publishing Company, 1991.