This publication discusses the international Zero Hunger agenda in light of the achievements of the Fome Zero programme in Brazil. It revisits successful initiatives and discusses current actions, while also critically assessing new and growing challenges to the global food security agenda: obesity and climate change. Bringing together contributions from international experts, the book charts a path for translating political will into political action. The example of Brazil and the country’s Fome Zero programme have shown that a comprehensive approach to hunger, based on a multisectoral social protection agenda and strong political leadership, is the key to success. Building on this experience, the Zero Hunger Challenge, launched by the UN in 2012, has mobilized an unprecedented global commitment to end hunger worldwide. Five of the 17 Sustainable Development Goals of the 2030 Agenda address this issue. Tackled together, these goals can end hunger, eliminate all forms of malnutrition and build inclusive and sustainable food systems. Indeed, the goals will have to be met if countries are to eradicate poverty and pave the way to long-term sustainable growth. Time is passing and the current disturbing world hunger figures call for renewed efforts. Our present actions will be decisive in achieving a more equitable and sustainable world. This book provides an opportunity to recall the achievements realized so far and inspire our future efforts.