Philippe Marie Guillaume Vandermaelen (December 23, 1795 - May 29, 1869) was a Flemish cartographer active in Brussels during the first part of the 19th century. Vandermaelen is created with "one of the most remarkable developments of private enterprise in cartography," namely his remarkable six volume Atlas Universel de Geographie. This great work, featuring some 378 unique maps and compiled over three years, was the first atlas to render the world on a uniform scale. Vandermaelen was born in Brussels in 1795 and trained as a globe maker. It was no doubt his training a globe maker that led him see the need for an atlas rendered on a universal scale such all bodies could be understood in relation to one another. Conjoined the maps of Vendermaelen's atlas would create a massive globe some 7.75 meters in diameter, a feat which was accomplished at the Etablissement Geographique de Brussels. Vandermaelen's atlas also bears the distinction of being one of the first to be produced by a lithographic print process. In addition to his great work Vandermaelen also produced a number of globes, lesser maps, a highly detail 250 sheet map of Belgium, and several regional atlases.