This book presents an analysis of medieval pottery remains found during archaeological excavations carried out at a series of sites within the Spanish city of León and in its immediate surroundings. For all of the pottery collections the various pots were inventoried using a series of variables, such as the raw materials from which they were made, the type of firing process used in their production, and their morphology and finish. These data, together with a visual analysis, were systematically compiled into a database, which enabled a subsequent quantitative and qualitative analysis. The study also includes the results of an archaeometric analysis of various pottery fragments carried out at the Archaeometric Unit at the University of Santiago de Compostela.