David Rumsey is a prominent American cartographer and map collector known for his extensive collection of historical maps. He has dedicated much of his life to preserving and digitizing maps, making them accessible to the public through his online platform, the David Rumsey Map Collection. His work has significantly contributed to the field of cartography and historical geography. In addition to his collection, Rumsey is also an advocate for the use of technology in education. He has collaborated with various institutions to promote the use of maps in teaching and research, emphasizing the importance of spatial understanding in subjects like history and geography. His efforts have helped to inspire a new generation of map enthusiasts and scholars.