The concept of resilience is gaining traction in the development field. As a framework, resilience presents a systems-oriented way of coping with shocks, which disproportionately affect the world’s poorest and most vulnerable people. While resilience has been used effectively within ecology, psychology, and engineering, and more recently by humanitarian workers and nongovernmental organizations, resilience within the context of development, and more specifically against the backdrop of food and nutrition security, is still a nascent concept. This “newness” offers us a unique opportunity to shape the resilience agenda, considering how to define it, frame it, measure and evaluate it, and put it into practice. This book contributes to the body of knowledge on resilience within the context of food and nutrition security. It reviews the conceptual links among resilience and food and nutrition security, hones in on the challenges and opportunities for building resilience against a wide range of shocks, explores how different actors and groups, including communities themselves, build the capacity to be resilient, and adds to the debate on how to measure resilience.