This book provides a unique compilation of forgotten agricultural heritage - traditional smaller-scale systems from history and the present day - and is based on objective scientific evaluation and evidence of the value of these systems. "This publication is unique both in its scope and coverage. It is a stock-take of the work carried out so far, in cooperation with several governments, donor institutions, FAO and other UN agencies, international organizations, non-governmental institutions, civil society organizations, academic and research institutions and many individuals. This informed source should serve as a new reference tool for all who share the common goal of contributing to solutions for sustainable agriculture and rural development." -from the foreword by José Graziano da Silva, Director-General, Food and Agriculture Organization (FAO) of the United Nations, Italy. "I must congratulate the authors for writing a book that does not mince words when conveying the urgency inherent in solving the world's current crises and fully articulates how reclaiming our agricultural heritage -neglected or forgotten in many parts of the world but not beyond recovery -can usher in a new era of sustainable development." - from the foreword by M.S. Swaminathan, Founder, Chairman and Chief Mentor, UNESCO Chair in Ecotechnology, M.S. Swaminathan Research Foundation,India. "This book contains a valuable and unique synthesis of traditional agricultural systems. It should be an important text for undergraduate and postgraduate courses in agriculture, development and international politics." - A M Mannion in British Ecological Society Bulletin (December 2017).