This book provides a wealth of empirical material to understand key aspects of EU governance including its plurality of actors and policy making modes and its functioning during crisis management. Authored by legal scholars and political scientists, it presents new research and insights on the role of EU agencies in the context of the Euro and migration crises. Specifically, the contributions assess why the crises have led to the creation of new EU agencies and what roles these agencies have performed since their inception; how the crisis, notably the migration crisis, has impacted on existing EU agencies; how EU agencies have shaped the policies during and after the crises; and, how the crisis has affected the accountability of EU agencies. This book is essential in understanding the intricacies of EU crisis management and the specific role of EU agencies therein, as well as EU governance more broadly.