This publication assesses how to improve agricultural value chains, particularly value chains that include smallholders. Despite increasing use of innovation-system and value-chain approaches to promote rural income growth, poverty reduction, and greater gender equity, there is little systematic knowledge about how to operationalize value-chain approaches in different contexts and how best to evaluate innovation and value-chain development. This book consists of 14 papers that present results of recent work associated with CGIAR and its partners in Africa, Asia, and Latin America. »