Unit 1 Chapter 1 pp. 15-22 Notes Cartography: the art and science of making maps Useful for many purposes: waging war, locating places, warning of natural disasters, solving medical issues Types of maps: (maps cannot show everything) Reference maps: shows of locations of places and geographic features. Absolute locations: accuracy of locations through coordinate system (longitude and latitude) to plot where something is on Earth Relative location: description of location relative to other human and physical features. These descriptions can change over time because of current importance of things around the featured location.