Trees of Britain & Europe (Collins Nature Guides) by Gregor Aas, Andreas Riedmiller

This full-color photographic guide to over 300 species of tree found in Britain and Europe arranges trees by the shape of their leaves for easy identification. Each species is illustrated with several color photographs, showing all the tree's most interesting and important characteristics, and individual descriptions include facts on tree shape, size, bark, leaves, fruit, flowers, and distribution.