Books in order of publication

American Wildflower Identifier1990
North American Bird Identifier1991
Practical Botanist1991
Practical Entomologist1992
Wildflowers: How to Identify Flowers in the Wild and How to Grow Them in Your Garden1992
A Guide to Animal Tracks : Identifying, Interpreting, and Exploring Animal Tracks1995
Incredible Bugs/Ultimate Guide to the World of Insects1997
Insects the Practical Guide to Entomology1997
Beginner’s Guide to Entomology2000