As essential agricultural staples, cassava, sweet potato, and yams offer unique, robust advantages that are crucial for strengthening local livelihood security and fostering viable industrial growth worldwide. This book provides a focused yet broad-ranging look at these key root vegetables, devoting individual discussions to each. It begins by examining their vital nutritional value and then transitions into the essential strategies for advancing breeding to ensure higher yields and resilience. Following this, the book explores techniques for optimizing production. It concludes with the critical steps needed to preserve their genetic resources, ultimately offering a holistic view of the ongoing development and significance of these three foundational crops.