Cartographers' works are MAPS, which are two-dimensional representations of the Earth's surface. MAPS are used to show geographical features, such as mountains, rivers, and cities, as well as political boundaries, roads, and other features. Cartographers use a variety of techniques to create MAPS, including aerial photography, satellite imagery, and geographic information systems. MAPS can be used for navigation, planning, and research, and are essential tools for understanding the world around us.