Caption:
The Catalan Atlas is the most important Catalan map of the medieval period (drawn and written in 1375). It was produced by the Majorcan cartographic school and is attributed to Cresques Abraham (also Abraham Cresques), a Jewish book illuminator who was self-described as being a master of the maps of the world as well as compasses. These four remaining leaves make up the actual map, which is divided into two principal parts. The map shows illustrations of many cities, whose political allegiances are symbolized by a flag. Christian cities are marked with a cross, other cities with a dome. Wavy blue vertical lines are used to symbolize oceans. Place names of important ports are transcribed in red, while others are indicated in black. Unlike many other nautical charts, the Catalan Atlas is read with the north at the bottom. As a result of this the maps are oriented from left to right, from the Far East to the Atlantic.