The global financial crisis was not just an economic calamity. It also precipitated a crisis in economic and political ideas. The pre-crisis faith that free markets produce optimal outcomes has been significantly eroded. A decade on, global policymakers still struggle to engage with a more empirically-grounded and less dogmatic brand of economics, and the differing prescriptions that it might suggest. Students of economics need to have an overview of the causes and consequences of the crisis, the ideas that contributed to it, and how those ideas and their policy implications are being challenged and debated. Most importantly, students of public policy need to be able to understand what went wrong – both in economics, and in policy.