Agroforestry is a broad term for land-use systems where woody perennials such as trees, shrubs or bamboos are grown and used in fields and farming landscapes. This can be carried out at the same time as in intercropping systems where trees and crops are grown together, or at different times such as in rotational practices. This booklet describes ways in which crops and trees can be grown together in an attempt to increase productivity and diversity whilst ensuring sustainability.