John D. Rockefeller recognized in his early philanthropy even before the creation of the Foundation that agricultural productivity is key to increasing overall wealth and health in the poorest of rural communities. Embracing the promise of science, they focused on the discovery of new technologies to enhance food production. But technology was never enough. New techniques and tools had to be adapted to local cultures and communities. This engaging book explores lessons learned from the Foundation’s efforts to improve this most basic, but still so complicated, arena of human endeavor.