Mercator was the mathematical that used for the first time the word Atlas in map compilations. His own Atlas is actually a correction to Ptolemy's maps, to which he added and outlined territory of newly “discovered” world. The novelty of this amazing book is the use of lines of longitude in a parallel way, which revolutionized navigation by marking the directions of the compasses with straight lines. Today we can see this technology in daily use such as Google Maps. 146 double-page maps made by hand, contained in 600 pages of a beautiful cartography, which you can enjoy in an elevated way thanks to its complex way of binding made by hand; the escartivana. That allows you to contemplate all the details without being stitched by the center of the map.