Sua opera controversissima aetate sua fuerunt, praecipue Leaves of Grass ('Folia graminis'), congeries poematum, quae propter eius sexualitatem apertam obscena descripta est. Whitman ab investigatoribus hodiernis plerumque aut homosexualis aut bisexualis describitur. Interpres operum in Francogallicum fuit Andreas Gide.
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Loving, Jerome. 1999. Walt Whitman: The Song of Himself. University of California Press. ISBN 0520226879.
Miller, James E., Jr. 1962. Walt Whitman. Novi Eboraci: Twayne Publishers, Inc.
Reynolds, David S. 1995. Walt Whitman's America: A Cultural Biography. Novi Eboraci: Vintage Books. ISBN 0679767096.
Stacy, Jason. 2008. Walt Whitman's Multitudes: Labor Reform and Persona in Whitman's Journalism and the First Leaves of Grass, 1840–1855. Novi Eboraci: Peter Lang Publishing. ISBN 9781433103834.