Great Britain and Ireland enjoy a rich cartographic heritage, yet historians have not made full use of early maps in their writings and research. This is partly due to a lack of information about exactly which maps are available. With the publication of this volume from the Royal Historical Society in 1994, we now have a comprehensive guide to the early maps of Great Britain. Now available from Cambridge University Press, this volume provides an essential reference tool for anyone requiring to access maps of the British Isles dating back to the medieval period and beyond.