This book on Routledge by Ingrid Oborn, Bernard Vanlauwe, Michael Phillips, Richard Thomas, Willemien Brooijmans and Kwesi Atta-Krah, describes different aspects of systems research in agriculture in its broadest sense, where the focus is moved from farming systems to livelihoods systems and institutional innovation. Much of the work represents outputs of three CGIAR Research Programs on Integrated Systems for the Humid Tropics, Aquatic Agricultural Systems and Dryland Systems. »