Bernd, Clifford A. German Poetic Realism. Boston: Twayne, 1981. Part of the World Authors series, this study looks at Keller in the context of nineteenth century German realism.
Buckley, Thomas. Nature, Science, Realism: A Re-examination of Programmatic Realism and the Works of Adalbert Stifter and Gottfried Keller. New York: P. Lang, 1995. Considers the role of science in Keller’s literary realism.
Flood, John L., and Martin Swales, eds. Gottfried Keller, 1819-1890: London Symposium, 1990. Stuttgart, Germany: Heinz, 1991. Contains eight excellent English articles, albeit with German quotations.
Hart, Gail K. “Gottfried Keller.” In Nineteenth Century German Writers, 1841-1900, edited by James Hardin and Siegfried Mews. Detroit: Gale Research, 1993. A good overview of Gottfried Keller’s life and works.
Holub, Robert C. Reflections of Realism. Detroit: Wayne State University Press, 1991. Using a Freudian approach, Holub writes a thought-provoking analysis of Keller’s novella “Romeo and Juliet in the Village.”
Lindsay, J. M. Gottfried Keller: Life and Works. Chester Springs, Pa.: Dufour, 1969. A detailed exposition.
Ruppel, Richard R. Gottfried Keller and His Critics: A Case Study in Scholarly Criticism. Columbia, S.C.: Camden House, 1998. A study of Keller’s critical reception.
Swales, Erika. The Poetics of Scepticism: Gottfried Keller and “Die Leute von Seldwyla.” Providence, R.I.: Berg, 1994. Focuses on the undercurrents and tensions that reveal Keller’s engagement with the social and psychological aspects of his time.