Author Keith Rushforth has written ten books, including The Mitchell Beazley Pocket Guide to Trees, that cover both tree identification and gardening using trees and shrubs. An expert urban forester, he is a member of the IUCN Species Survival Commission Conifer Specialist Group. Consultants for this book include Dr. Glenn D. Dreyer, Director, Connecticut College Arboretum and Deborah Gangloff, Executive Director, American Forests