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- Illinois (United States) by Paul Joseph, 1998-02
- Illinois: Past and Present (The United States: Past and Present) by Joanne Mattern, 2009-09
- Illinois (Our Amazing States) by Marcia Amidon Lusted, 2009-09
- Illinois (This Land Called America) by Shawndra Shofner, 2008-07-15
- Illinois (One Nation) by Capstone Press Geography Department, 2002-09-01
- Transactions of the Illinois Academy of Sciences. Twenty-First Annual Meeting. Volume XXI. by Illinois Academy of Sciences, 1929
- Transactions of the Illinois Academy of Sciences by Illinois Academy of Sciences, 1924
- Physiography of the St. Louis area, (Illinois. State geological survey. Bulletin) by Nevin Melancthon Fenneman, 1909
- Portraits of the States: Illinois by P.M. Boekhoff, 2006
- Transactions of the Illinois Academy of Sciences. Eighteenth Annual Meeting. Volume XVIII. by Illinois Academy of Sciences., 1925
- Geography of the Middle Illinois Valley by Barrows, 2010-01-10
- Geography of the Upper Illinois Valley and History of Development. by CARL ORTWIN SAUER, 1916
- Geography of Chicago, Illinois: Chicago River, South Side, Lurie Garden, Geography of Chicago, Wolf Lake, Lake Calumet
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