In common with other titles in this series, this volume describes the scientific principles that are the bases of crop production practices. This volume focuses on the leafy salad vegetables lettuce, endive and chicory. It opens with a review of world production data, crop uses, botany, taxonomy and evolution. It then describes the genetics and breeding of the crop, including cultivar development and germplasm resources. Physiological aspects, such as germination, growth and development, are then discussed. Production methods worldwide, including growing under cover in protected environments, are reviewed, before consideration of harvesting and seeds, pests and diseases, and economics and marketing. The book is written by one of the world's leading authorities on the subject and will be indispensable for advanced students and growers in horticulture.