David Allen Sibley, the preeminent bird-guide author and illustrator, now applies his formidable skills of identification and illustration to the trees of North America. Monumental in scope but small enough to take into the field, The Sibley Guide to Trees is an astonishingly elegant guide to a complex subject. It condenses a huge amount of information about tree identification--more than has ever been collected in a single book--into a logical, accessible, easy-to-use format. With more than 4,100 meticulous, exquisitely detailed paintings, the Guide highlights the often subtle similarities and distinctions between more than 600 tree species--native trees as well as many introduced species. No other guide has ever made field identification so clear. Features highlighted include: • leaves (including multiple leaf shapes and fall leaf color) • bark • needles • cones • flowers • fruit • twigs • silhouettes More than 500 maps show the complete range, both natural and cultivated, for nearly all species. Trees are arranged taxonomically, with all related species grouped together. By focusing on the fundamental characteristics of, for example, oaks or chestnuts or hickories, the Guide helps the user recognize these basic species groups the same way birders recognize thrushes, warblers, or sparrows. In addition, there are essays on taxonomy, on the cultivation of trees, and on conservation issues, reflecting Sibley's deep concern with habitat preservation and environmental health. An important new contribution to our understanding of the natural world, The Sibley Guide to Trees will be a necessity for every tree lover, traveler, and naturalist. It is sure to become the new benchmark in field guides to trees.