Book excerpt: This book is concerned with growing essential oil plants profitably to obtain an aromatic derivative. Each chapter covers a different family. A brief history of the use and economic development is given, and cultivation, harvesting and distilling described. Results of current research and recommendations for improved agronomic practices, together with methods of adding value to the crop, such as producing honey or processing the oil, are also discussed. This book is key reading for all agricultural advisers, researchers, agronomists and extension workers concerned with essential oil crops, and policy makers working on rural improvement in developing economies. It also contains valuable information for specialists involved in the use of essential oils, and commodity traders.