Natural History
- BERENBAUM, May R. : Ninety-nine Gnats, Nits, and Nibblers
- BERENBAUM, May R. : Ninety-nine More Maggots, Mites, and Munchers
- BERGMAN, Charles : Wild Echoes: Encounters with the Most Endangered Animals in North America
- FINE, Gary Alan : Morel Tales: The Culture of Mushrooming
- GRAY, Gary G. : Wildlife and People: The Human Dimensions of Wildlife Ecology
- HOFFMEISTER, Donald F. : Mammals of Illinois
- IRVING, Photographs by Gary Irving; Essay by Michal Strutin: Places of Grace: The Natural Landscapes of the American Midwest
- JEFFORDS, Michael R., Susan L. Post, and Kenneth R. Robertson: Illinois Wilds
- LEWIS, Charles A. : Green Nature/Human Nature: The Meaning of Plants in Our Lives
- LINZEY, Andrew : Animal Theology
- WRIGHT, R. Gerald : Wildlife Research and Management in the National Parks