Daniel Laqua is Associate Professor of European History at Northumbria University, UK. He is the author of The Age of Internationalism and Belgium, 1880–1930: Peace, Progress and Prestige. Wouter Van Acker is Associate Professor in Architectural Theory and History at the Université libre de Bruxelles, Belgium. Christophe Verbruggen is Associate Professor in Social and Cultural History at Ghent University, Belgium.

• INTRODUCTION: RECONSTRUCTING THE IDENTITIES OF AN INTERNATIONAL NON-GOVERNMENTAL INTELLIGENCE AGENCY, Daniel Laqua, Wouter Van Acker and Christophe Verbruggen Part I: THE DEVELOPMENT OF THE UIAChapter 1 CREATING THE UIA: HENRI LA FONTAINE, CYRILLE VAN OVERBERGH AND PAUL OTLET W. Boyd RaywardChapter 2 THE UIA AND THE PATRONAGE OF INTERNATIONALISM: FROM THE BELLE ÉPOQUE TO THE SECOND WORLD WAR Christophe Verbruggen Chapter 3 EDUCATING INTERNATIONALISTS: THE CONTEXT, ROLE AND LEGACIES OF THE UIA’S ‘INTERNATIONAL UNIVERSITY’ Daniel Laqua Chapter 4 CARVING OUT A NEW ROLE: THE UIA AFTER THE SECOND WORLD WAR Part II: THE UIA IN A WORLD OF INTERNATIONAL ORGANIZATIONSChapter 5 BUILDING A ‘NEW INTERNATIONAL ORDER’: INTERNATIONAL WOMEN’S ORGANIZATIONS AND THE UIA Sarah Hellawell Chapter 6 LEGITIMIZING THE TRANSNATIONAL ASSOCIATIVE EXPERT: THE UNION INTERNATIONALE DES VILLES AND THE UIA Wouter Van Acker Chapter 7 HISTORIANS AND INTERNATIONAL ORGANIZATIONS: THE INTERNATIONAL COMMITTEE OF HISTORICAL SCIENCESMatthias Middell and Katja Naumann Part III: EXPLORING THE UIA’S PUBLICATIONS AND DATAChapter 8 THE UIA AND THE DEVELOPMENT OF INTERNATIONAL RELATIONS THEORY Thomas Davies Chapter 9 EVERYTHING ONE WANTS TO KNOW ABOUT INTERNATIONAL ORGANIZATIONS? A CRITICAL BIOGRAPHY OF THE YEARBOOK OF INTERNATIONAL ORGANIZATIONS, 1909–2017 Pierre-Yves Saunier Chapter 10 LOOKING FOR INFORMATION ON INTERNATIONAL SECRETARIATS: DIGGING DEEPER INTO THE YEARBOOK OF INTERNATIONAL ORGANIZATIONS Bob Reinalda Chapter 11 MAPPING INTERNATIONALISM: CONGRESSES AND ORGANIZATIONS IN THE NINETEENTH AND TWENTIETH CENTURIES Martin Grandjean and Marco H. D. van Leeuwen EPILOGUE: THE UIA IN THE TWENTY-FIRST CENTURY Nancy Carfrae

Essential for anybody who wants to use UIA data, as it is the deepest and clearest reference, introducing the organisation and its publications. At the same time, the book is an interesting read for anyone dealing with the international system ... In the different chapters, the authors show great knowledge of the subject they are handling, providing a series of well-known essential references along with more refined publications that are less known, but valuable indeed. It is surely a book that deserves a wide outreach.