A comprehensive guide to North American trees written and illustrated by David Allen Sibley.
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 into a single volume using 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.