In September 2015, world leaders adopted a new post-2015 development agenda, centered on 17 Sustainable Development Goals intended to transform the world. This report provides basic information about the new agenda—its content, aspirations, and global partnership approach. It describes the complex challenges to the agenda’s effective implementation, including the multiplicity of participants, the growing diversity of financing, the need for better knowledge, and the persistence of state fragility. Throughout, the emphasis is on the importance of new thinking and new behavior that will shift the conversation from a focus on aid to a more comprehensive paradigm of development partnerships, recognizing the crucial need to integrate sustainable development in coherent efforts to preserve our planet and enhance the well-being of all its inhabitants. The author concludes the report with suggestions about priorities for implementation of the 2030 Agenda for Sustainable Development.