David Allen Sibley, the preeminent, bestselling bird-guide author and illustrator, applies his formidable skills of identification and illustration to the trees of North America.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