This collection provides a balanced evaluation of multi-level governance. Written by international experts of policy-making in the European Union, each contribution builds on common conceptual definitions, critically debating their adaptation to policy-specific contexts and investigating their usefulness for conducting empirical research. This engaging text uses case studies to identify the specific changes that have occurred in power relations across different levels of the EU system. With varying emphasis on state and non-state actors, on country comparisons and international processes, the reader is invited to join a fruitful dialogue among the contributors about the symbiotic relationship of multi-level analysis with other conceptual innovations such as transnational regulation, network formation or market internationalization. This book confronts sophisticated theoretical reasoning with the actual realities of policy-making and is therefore essential reading for all those interested in the risks and opportunities of a comparative-interdisciplinary approach to European governance.