Gallaher, Carolyn. Key Concepts in Political Geography. London ; Los Angeles: SAGE, 2009. Available in the GRC
Howe, Stephen. Empire: A Very Short Introduction. New York: Oxford University Press, 2002. Available in the GRC
Nayak, Anoop, and Alex Jeffrey. Geographical Thought: An Introduction to Ideas in Human Geography. Harlow: Prentice Hall, 2011. Available in the GRC
Painter, Joe, and Alex Jeffrey. Political Geography: An Introduction to Space and Power. 2nd ed. Los Angeles: SAGE, 2009.
Zinn, Howard. A People's History of the United States, 1492-present. New York: Perennial Classics, 2003. Available in the GRC