A Critical Companion to English Mappae Mundi of the Twelfth and Thirteenth Centuries, edited by Dan Terkla and Nick Millea.: Woodbridge: The Boydell Press, 2019. ISBN 978-1-78327-422-2. Pp. xxiv, 314, illus. STG £50.00 (cloth). Issue Volume 73:Issues 1(2021) (2nd January 2021)