- Lewis, Sinclair. Babbitt. New York: Barnes & Noble Classics, 2005.
- Light, Martin. The Quixotic Vision of Sinclair Lewis. West Lafayette: Purdue University Press, 1975.
- Love, Glen A. Babbitt: An American Life. New York: Twayne Publishers, 1993.
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Mencken, H.L. "Portrait of an American Citizen." Critical Essays on Sinclair Lewis. Ed. Martin Bucco. Boston: C.K. Hall & Co., 1986. 37-39.
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Pugh, David G. "Baedekers, Babbitry, and Beaudelaire." Critical Essays on Sinclair Lewis. Ed. Martin Bucco. Boston: C.K. Hall & Co., 1986. 204-212.
- "Sinclair Lewis & His Life: Biography." 2005-10-30. <http://www.english.ilstu.edu/separry/sinclairlewis/biography.html>.