Winter Tree Finder: A Manual for Identifying Deciduous Trees in Winter (Eastern US) (Nature Study Guides)

Tree Finder: A Manual for Identification of Trees by their Leaves (Eastern US) (Nature Study Guides)

Flower Finder: A Guide to the Identification of Spring Wild Flowers and Flower Families East of the Rockies and North of the Smokies, Exclusive of Trees and Shrubs (Nature Study Guides)

Winter Weed Finder: A Guide to Dry Plants in Winter (Nature Study Guides)

Fern Finder: A Guide to Native Ferns of Central and Northeastern United States and Eastern Canada (Nature Study Guides)

Bark: A Field Guide to Trees of the Northeast

A Field Guide to Eastern Trees: Eastern United States and Canada, Including the Midwest (Peterson Field Guides (Paperback))

Berry Finder: A guide to native plants with fleshy fruits

Fruit Key and Twig Key to Trees and Shrubs

Forest Forensics: A Field Guide to Reading the Forested Landscape