This handbook draws upon a wealth of experiences from over 20 countries and illustrates that food system changes towards sustainability are already underway. These innovations challenge and change norms, institutions, practices and relationships among food system actors. This resource is meant to help those actors who want to contribute to this transition. Drawing upon both scientific and experiential knowledge, the advice and tips provided in this handbook inspire a positive attitude regarding the innovative capacity of local actors around the world and the prospects for enabling the emergence of sustainable food systems.