This article is the first in a series of articles highlighting the work of our colleagues around the world to build agroecological practices, science and movements. Agroecology has emerged as a set of practices based on principles that guide how to produce food sustainably, as well as how to manage the social relationships that govern food production, processing, exchange and waste management in a fair manner. We hope this series will show how, as a systems approach, agroecology can address the multitude of problems within our food system from field to plate.