Synopsis The present volume provides a comprehensive and authoritative account of this wonder tree Neem (Azadirachta indica A. Juss). An excellent reference text, it offers a versatile and indepth account of occurrence, distribution, ethnobotany, uses in agroforestry, silviculture and social forestry, cultivation and improvement of Neem, propagation by tissue culture, chemical constituents and their bioactivity against micro-flora and micro-fauna, disease, stored grain insect-pests, enhancing fertilizer use efficiency, Neem in health and cosmetics, various therapeutic uses such as malaria and vector control, contraceptive, ancient veterinary medicines, uses of Neem bark in dying cotton fabrics and steps for promoting Neem and its cultivation. Hopefully, this book will be very useful for researchers of various disciplines such as botany, forestry, chemistry, toxicology, agrochemicals, soil science, agronomy, entomology, plant pathology, medical and veterinary science and to the environmental conscious farmers of developed and developing countries. The present book includes 37 chapters broadly divided in 8 sections contributed by eminent scientists working on different aspects of Neem. An attempt has been made to present as many aspects as possible under the sections given below:  Neem: its botany and forestry. Cultivation and improvement of Neem. Chemical constituents and their bioactivity. Bioactivity against icroflora and microfauna. Bioactivity against insect-pests. Enhancing fertilizer use efficiency. Contribution to human and veterinary medicine. Promoting Neem and its cultivation.