National Geographic Magazine, January 1959

Trees: Revised and Updated (A Golden Guide from St. Martin's Press)

Tropical Wonderland: A Magical Coloring Retreat – A Calming Coloring Book of Rainforest Flowers and Animals for Adults (Coloring Wonderland)

Take to the Trees: A Story of Hope, Science, and Self-Discovery in America's Imperiled Forests

Grasses of the Northern Forest: A Photographic Guide (The Northern Forest Atlas Guides)

Whispering Woods: Enchanting Secrets from the Forest

A Beginner's Guide to Recognizing Trees of the Northeast

Woodland Journal

Walking Europe's Last Wilderness: A Journey through the Carpathian Mountains

Insects and Other Arthropods of Tropical America (Zona Tropical Publications)