Driscoll, J. Walter. Gurdjieff: An Annotated Bibliography. New York: Garland, 1985, 363 p.
Comprehensive bibliography of secondary sources.
Bennett, John G., Gurdjieff—A Very Great Enigma: Three Lectures. Reprint. York Beach, ME: Samuel Weiser, 1973, 96 p.
Discusses "the incredible environment of Gurdjieff's boyhood," the eclectic influences on his occult beliefs, and the major concepts on which his teachings are based.
De Hartmann, Thomas, and De Hartmann, Olga. Our Life with Mr. Gurdjieff. New York: Viking Penguin, 1992, 304 p.
(The entire section is 497 words.)