Claire Lamine is sociologist and research director at INRAE. She develops interdisciplinary approaches to agroecological transitions at the scale of agri-food systems and studies the processes of institutionalisation of agroecology in France and Brazil. Danièle Magda is an ecologist and research director at INRAE. She worked on agroecological practices learning in farming systems and now develops interdisciplinary research on the diversity of visions on ecologisation and of relationships to nature in the transition of agrifood systems. Marta Rivera-Ferre is Research Professor at INGENIO (the Spanish National Research Council) and UPV. She focuses her research on agroecology and food sovereignty as strategies to increase the sustainability of food systems, as well as in the place of feminists and commons theories in agri-food research. Terry Marsden is Emeritus Professor at the School of Geography and Planning and the Sustainable Places Research Institute at Cardiff University. He has worked extensively in the fields of rural development, agri-food studies and sustainability.