Plant genetic resources for food and agriculture (PGRFA) serve as the raw material used by plant breeders and farmers to create new crop varieties. As such, they are viewed by many as the foundation for modern agriculture and as essential for achieving global food security. The United Nations Food and Agriculture Organization estimates that more than three-quarters of the increased crop productivity of the past 30 years is the result of plant breeding, and that future global food security depends to a large extent on the continued improvement of food crops. This book explores the International Treaty on Plant Genetic Resources for Food and Agriculture which provides a general framework for conservation and sustainable use of plant genetic resources.