“Providing new insights on a range of understudied actors, structures and for a of cooperation, this book contributes indeed to a broader understanding of the manifold strands that together constitute the larger context of European integration. … the book constitutes through its case studies, conceptualisation approaches, and suggestions for further studies a nonetheless important and valuable addition to the literature in the wider and increasingly diverse field of European integration historiography.” (Mechthild Roos, H-Soz-Kult, hsozkult.de, April 14, 2022)“The book does a much better job than most edited volumesin drawing out links and connections between the various contributions. … Overall, this book is an excellent contribution to the literature: it summarizes the discussion, challenges established notions, provides a string of contributions with fresh findings, and prepares the ground for further debate.” (Kiran Klaus Patel, Connections, April 8, 2022)