‘This handbook is a real tour de force: It combines cutting-edge insights into substantive aspects of decision-making, policy change and the external dimension of EU justice and home affairs with an unmatched exploration of advances, challenges and promising new avenues of research in this dynamic EU policy domain. It sets a new standard and will be a stimulating companion for anyone working in the field.’ - Jörg Monar, College of Europe, Belgium.‘This excellent book provides a major and authoritative review of the main theoretical, sectoral, geographical and institutional aspects of EU Justice and Home Affairs cooperation. With its comprehensive coverage and in-depth analyses, it is an essential resource for both incoming and established scholars working in the field.’ - Sandra Lavenex, University of Geneva, Switzerland. ‘This Handbook is a success on at least two levels. First, it brings together leading experts to get to grips with the dynamics of cooperation and integration on JHA issues. Second, it provides a wealth of information that makes it essential reading for anyone wanting to understand these important issues.’ - Andrew Geddes, European University Institute, Italy.