For four years, between 2015 and 2019, Frédéric Mérand went behind the wings at Berlaymont, the seat of the European Commission in Brussels, in order to observe and understand how Europe is really "made". Taking an ethnographic approach, he slipped into the team led by Pierre Moscovici, then European Commissioner for economic affairs under President Hollande, and later President Macron. Mérand shared offices with the men and women responsible for euro-zone policy, followed them through the corridors of their building in Brussels, sat with them at the canteen, and attended their meetings around the world. He questioned them on their strategies and methods, and their navigation between partisan struggles and diplomatic games. He listened to their fears and surprises, their hopes and disappointment during the various storms they weathered, from the Greek financial crisis, to tax evasion scandals, and the rise of the populist threat in Italy. This book provides the unique perspective of a North-American sociologist on our European and national practices, and on a European Commission that is clearly more political than it is technocratic.