'Reading a map' in the Middle Ages could mean scanning great blocks of written matter, describing geographical, anthropological, and historical featu… - Evelyn Edson

Looking at a medieval mappamundi (or world map) is a disorienting experience. Oriented to the east, displaying unfamiliar geographical forms and blanketed with images of strange animals and monstrous humans, it does not correspond to our modern concept of a world map.

Behind the maps of the sixteenth century lies another story—the change in geographical conceptions, mapmaking, and map usage that took place in the late Middle Ages. Pietro Vesconte, Cresques Abraham, Fra Mauro, Andrea Bianco, and Henricus Martellus Germanus were among the medieval cartographers who began to reshape the image of the world before Columbus sailed west.