Cottrell, Robert C. Roger Nash Baldwin and the American Civil Liberties Union. New York: Columbia University Press, 2000.

Garey, Diane. Defending Everybody: A History of the American Civil Liberties Union. New York: TV Books, 1998.

Johnson, Donald Oscar. The Challenge to American Freedoms: World War I and the Rise of the American Civil Liberties Union. Lexington, KY: University of Kentucky Press, 1963.

Klein, Woody. Liberties Lost: The Endangered Legacy of the ACLU. Westport, CT: Greenwood Publishing Group, 1996.

Lamson, Peggy. Roger Baldwin: Founder of the American Civil Liberties Union. Boston, MA: Houghton Mifflin Company, 1976.

Walker, Samuel. Civil Liberties in America. Denver, CO: Contemporary World Issues, 2004.

Walker, Samuel. In Defense of American Liberties: A History of the ACLU. New York: Oxford University Press, 1990.

Walker, Samuel. In Defense of American Liberties, Second Edition: A History of the ACLU. Carbondale, IL: Southern Illinois University Press, 1999.

Walker, Samuel. Are There Any Good Books On Civil Liberties? A Reader’s Guide.