This handsome volume is the result of a collaboration among leading scientists, scholars, taxonomic and field experts, photo editors, and designers. An indispensable reference, it covers more than 540 species, with nearly 2,500 full-color photographs—including images of the bark, fruit, and flowers, as well as photos that illustrate leaf shape and seasonal color changes. For ease of use, the book includes a glossary, a robust index, and a ribbon marker, and is arranged according to the latest Angiosperm Phylogeny Group classification system—with trees sorted by taxonomic orders and grouped by family, so that related species are presented together. Readers will appreciate the crisp detail of the photographs; range maps (reflecting the impact of climate change); physical descriptions; and information on fruit, habitat, uses, and similar species. The guide includes an important new category on conservation status and essays by leading scholars who provide holistic insights into the world of trees. Whether putting a name to the towering conifers spotted along a hike or getting to know the trees that grow in the backyard, readers will come to rely on this work of remarkable breadth, depth, and elegance. It is a must-have reference for the library of any nature lover, and is poised to become the number one guide in the field.