Too often, even reform leaders in countries fail to adopt and implement policies that they know are necessary for sustained economic development. They are encumbered by adverse political incentives, running the risk of losing office should they try to do the right thing. When technically sound policies are selected on paper, implementation through the public system can run into perverse norms of behavior among public officials and citizens to extract private benefits from the public sector at the expense of the greater public interest. Making Politics Work for Development is about how to make politics work for economic development rather than against it. It focuses on research about two forces - citizens' political engagement and transparency - that explain and hold the potential to improve political incentives and norms of behavior in the public sector. The research shows that the confluence of transparency and political engagement can be a driving force for countries to transition toward better functioning public sector institutions, starting with their own initial and contextual conditions. To harness the potential of these forces, policy actors should target transparency to nourish the quality of political engagement so that citizens can hold leaders accountable for the public goods needed for development.