Agroforestry is an integrated approach of using the interactive benefits from combining trees and shrubs with crops and/or livestock. It combines agricultural and forestry technologies to create more diverse, productive, profitable, healthy and sustainable land-use systems. In agroforestry systems, trees or shrubs are intentionally used within agricultural systems, or non-timber forest resources are cultured in forest settings. The present book describes the state of current knowledge in the rapidly expanding field of agroforestry. Organised into 16 chapters, it reviews the developments in agroforestry and describes the accomplishments in the application of biophysical and socioeconomic sciences to agroforestry. Although the major focus of the book is on the tropics, where the practice and potential of agroforestry are particularly promising, the developments in temperate zone agroforestry are also discussed. The book is designed for students, teachers, and researchers in agroforestry and farming systems.