This book’s title, ‘The Inhabited Cathedral: Living History of an Architectural Space’, clearly conveys its contents and aims. ‘Space’ redirects the spotlight from the surfaces of walls and tracery — essential elements in taxonomies of architectural form — towards the vast interiors of cathedrals, those areas which usually remain blank in ground plans. The volume animates these nebulous spaces by focusing on the human presence within architecture, and specifically on institutional history, liturgy, ceremonies, local festivities, and other everyday activities. For Eduardo Carrero, it is these movements of life and ritual that shaped cathedral environments, rather than such remarkable events as coronations, which were ultimately too rare and unpredictable to define architectural design. Nevertheless, both regular and unexpected events articulate the longer histories of religious buildings. These lives are marked by large-scale, irreversible changes, from the aftermath of the Council of Trent to contemporary processes of musealisation, but also by daily adaptations and improvements. In keeping with this approach, the volume focuses on medieval buildings in Europe, but freely crosses chronological and geographical boundaries, challenging traditional conceptions of architectural history as a chronology of clearly differentiated regional styles.