Folsom, Ed.Walt Whitman's Native Representations. Cambridge University Press, 1994. How Whitman used American culture to develop a distinctly American kind of poetry.
Greenspan, Ezra.Walt Whitman and the American Reader. Cambridge University Press, 1990. Examination of the relationship that Whitman cultivated with his readers.
Kaplan, Justin.Walt Whitman: A Life. Simon & Schuster, 1980. Exploration of Whitman's personality and works.
Miller, James Edwin, Jr., and Helen Regenstein.Walt Whitman. Twayne, 1990.