A cartographer designs, prepares, and revises maps, charts, and spatial databases, blending science, math, and design using tools like GIS and CAD to transform data from surveys, aerial photos, and satellites into visual formats for diverse uses like urban planning, navigation, or environmental management, creating both static and interactive digital maps. They analyze geographic data, ensure accuracy, and often work in teams with engineers and scientists, with roles varying from data compilation and drafting to developing complex mapping algorithms.