For centuries, forests have provided humans and wildlife with shelter and food, but as the need for more wood products from trees increases, so too does the danger of losing the source of our natural wealth. Left untouched, forests provide beauty and recreation that continue to improve our quality of life, and it is our responsibility to take care of that which takes care of us. Forestry explores the science of forestry, from the types of trees and shrubs grown for commercial and medicinal use, to the impact of trees on the environment and human society. This reference is a vital tool for students and teachers of the natural world.