How are good ideas for enhancing global governance converted into policy initiatives and international institutions? One major route has been through international commissions. The names of many are well known: Brandt, Palme, Brundtland, Kosovo, the Commission on Global Governance, and the International Commission on Intervention and State Sovereignty. Yet, as an expression of the power of ideas in the search for a better world, they remain under-analyzed. This volume scrutinizes the character, record, style, and substance of a wide variety of international commissions on an individual basis, as well as their overall impact on global policy.