This collection of essays presents the exciting and innovative work being done in the field of medieval architectural history by scholars affiliated with AVISTA, one of the most active sponsors of such research in the Anglo-American scholarly community. These studies constitute a snapshot of the range of new interpretive strategies being deployed by researchers in the reassessment of previous scholarship and identification of new modes of inquiry. In recent years, the study of medieval architecture has been transformed by the emergence of new critical perspectives and new technologies. The contributors to this book are among those at the forefront of these developments. Several of the essays present dramatic reinterpretations of canonical monuments including the Abbey of Saint-Denis, Beauvais Cathedral and Notre-Dame in Paris. Others consider broader methodological issues such as the applications of geometry, workshop practice, and the shaping of historical narratives. Still others demonstrate how high-tech scanning and visualization methods can enhance our understanding of construction methods and the behavior of buildings. The publication of this collection of pioneering essays should foster further exploration by clarifying the state of research, by establishing specific historical arguments, and by providing models of inquiry to inspire emerging scholars.