13 books • 2 series
Bird Tracks (Adventure Quick Guides)
Stargazing for Kids (Simple Introductions to Science)
Animal Tracks of the Midwest Field Guide
Animal Tracks of the Northeast (Adventure Quick Guides)
Animal Tracks of the Southeast & Gulf States (Adventure Quick Guides)
Simply Stargazing (Adventure Quick Guides)
Animal Tracks of the Rocky Mountains
Animal Tracks of the Northwest
Sophie's Night Sky Adventure
Animal Tracks of the Midwest
25 Great Bike Rides of the Twin Cities
Animal Tracks: Midwest Edition
Night Sky