High-quality public debt management plays a critical role in reducing countries vulnerability to financial crises. Good debt management encompasses sound risk and cash management, effective coordination with fiscal and monetary policy, good governance, and adequate institutional and staff capacity. With these in place, governments can develop and implement effective medium-term debt management strategies. Effective implementation of debt management strategies also requires developing an efficient domestic government debt market. This book draws insights from 12 developing and emerging market country case studies on moving from country diagnostics to reform implementation.