With the adoption of the UN Sustainable Development Goals (SDGs) by the United Nations in 2015, sustainability has taken center stage in public policy debates at global, national and local levels. This class introduces and explores conceptual foundations of sustainability and its social, economic and environmental dimensions. We consider normative foundations, indicators, tools for analysing synergies and tradeoffs among different goals and public policies and governance options for achieving sustainability. A focus is on the political economy of interactions between the state, business and NGOs in devising public policy for sustainability. While conceptual tools taught in this course are rooted mainly in economics and political science, their application will be non-formal throughout. Note that this is not a class in development economics or applied corporate social responsibility (CSR).