- A field guide to Atlantic Coast fishes of North America, C. Richard Robins, G. Carleton Ray ; illustrations by John Douglass and Rudolf Freund; sponsored by the National Audubon Society and the National Wildlife Federation
- Ducks of North America and the northern hemisphere, John Gooders, Trevor Boyer
- Wild berries & fruits field guide, Illinois, Iowa, and Missouri, by Teresa Marrone
- Wildflowers of the tallgrass prairie, the upper Midwest, by Sylvan T. Runkel and Dean M. Roosa ; with a foreword by John Madson
- Ferns, [by] Robert H. Mohlenbrock
- Peterson field guide to medicinal plants and herbs of eastern and central North America, Steven Foster and James A. Duke ; photographs by Steven Foster
- Vegetable literacy, cooking and gardening with twelve families from the edible plant kingdom, with over 300 deliciously simple recipes, Deborah Madison ; photography by Christopher Hirsheimer and Melissa Hamilton
- National Wildlife Federation field guide to wildflowers of North America, written by David M. Brandenburg ; foreword by Craig Tufts
- Trees of Illinois, Linda Kershaw ; with contributions by Christopher Dunn & Clem Hamilton
- Wildflowers and weeds, a guide in full color, Booth Courtenay, James Hall Zimmerman
- Common legumes of the Great Plains, an illustrated guide, by James Stubbendieck and Elverne C. Conard ; illustrated by Bellamy Parks Jansen
- Insects, their natural history and diversity : with a photographic guide to insects of eastern North America, Stephen A. Marshall
- A field guide to reptiles & amphibians, eastern and central North America, Roger Conant and Joseph T. Collins ; illustrated by Isabelle Hunt Conant and Tom R. Johnson
- The world of birds, Jonathan Elphick
- The savory wild mushroom, by Margaret McKenny ; revised and enlarged by Daniel E. Stuntz ; with contributions by Varro E. Tyler and Angelo M. Pellegrini
- A naturalist's guide to wetland plants, an ecology for eastern North America, Donald D. Cox ; illustrations by Shirley A. Peron
- Peterson field guide to birds of North America, Roger Tory Peterson ; with contributions from Michael DiGiorgio ... [et al.]
- Birds of North America, a guide to field identification, by Chandler S. Robbins, Bertel Bruun, and Herbert S. Zim ; illustrated by Arthur Singer