Alain Manesson Mallet (1630–1706) was a French cartographer, military engineer, mathematician, and teacher at the court of Louis XIV. Starting his career as a soldier, he rose to the rank of Sergeant-Major in artillery and Inspector of Fortifications. He also served in Portugal before returning to France, where his mathematical expertise earned him a teaching position in Versailles. Mallet is renowned for his major works, especially “Description de L’Univers” (1683), a comprehensive five-volume geographical and astronomical publication blending maps of the ancient and modern world with cultural and scientific information. His engaging style included decorative illustrations, many drawn by himself, reflecting his effort to entertain and educate readers. Collectors value his work for its blend of scientific importance, artistic detail, and historical insight into 17th-century knowledge and exploration. His publications remain significant for the history of cartography and military engineering.