Many European towns have experienced loss of population, degradation of physical structure and profound economic change at least once since the height of the Roman Empire. This volume is an examination of the various causes of these changes, the results which flowed from them and the reasons why some urban centres survived, revived and eventually flourished again while others failed and died. The contributors bring to bear the techniques of history and archaeology, the perspectives of economics, agronomy, medicine, architecture and planning, geography and law, to the study. The result is a synthesis which connects the Decline of the Roman Empire to the effects of the Black Death and the economic transformation of Renaissance Florence.