- Barbara Ehrenreich. Nickel and Dimed: On (Not) Getting By In America. New York, NY: Henry Holt and Company, LLC, 2001.
- Ruby K. Payne. A Framework for Understanding Poverty. Highlands, TX: aha! Process, Inc., 1996.
- Jeffrey D. Sachs. The End of Poverty. New York, NY: The Penguin Group, 2005.
- Sheldon H. Danziger, Robert H. Haveman, ed.. Understanding Poverty. New York, NY: Russell Sage Foundation, 2001.
- Barbara Ehrenreich. This Land is Their Land. New York, NY: Henry Holt and Company, LLC, 2008.
- Richard Hofstadter. The American Political Tradition. New York, NY: Random House, 1948.
- The New York Times. "Columnist Biography: Barbara Ehrenreich." 2009-07-14. <http://www.nytimes.com/ref/opinion/ehrenreich-bio.html>.
- Barbara Ehrenreich. "Barbara Ehrenreich." 2009-06-01. <http://www.barbaraehrenreich.com/>.