I've selected them for clarity, usability, broad coverage and good reviews from users. All of these books are of high quality and a good bet for most leaf viewers, tree hobbyists and outdoor enthusiasts. Just pick the one you think offers you most for the value.
By C. Ritchie Bell and Anne H. Lindsey
Two experienced botanists who lead annual fall color programs in North Carolina have compiled one of the best resources on fall tree color available for Eastern forests. This small pocket guide contains 60 color photos and basic info for identifying most common trees of fall. The book also helps you identify specific trees from drawings of leaves, and maps of the ranges where you can find each species. A great book for leaf-viewing tourists, teachers, and amateur botanists.
By Elbert L. Little
This book serves as both a fall leaf guide and tree identification book. If you need both, I recommend this book as it is one of the best. The Autumn leaves section gives excellent color photos as does the fruit and nut section. This photo rich guidebook describes 364 species and is organized by shape of the leaf or needle, by the fruit, by the flower or cone, and by autumn coloration. It is a light and compact book that can be easily carried on leaf viewing hikes.
The book is a full-blown soft-bound field guide that more than adequately describes specific trees and shrubs, with their leaves and fruits. There are 240 full-color photographs of fall trees, shrubs, leaves and fruits of the eastern hardwood forests. The largest section of the book is devoted to the fall color of 100 individual species of trees. Fall Color has been given great reviews and should be considered a first book to purchase.
This book gives an initial physical, chemical, and biological report on why leaves change, photosynthesis and what causes the various color changes of trees. A full 100 pages cover common deciduous trees of northeastern North America with excellent photos of each tree in various habitats of fall. The conifers are not forgotten either. A sixty-page section explains the northeastern North American evergreen and it's part to play in the color of autumn.