This document provides an introduction to full-featured GIS software. It explains that GIS software displays geographic data through visual features like colors and symbols but does not store the actual geographic information. The geographic information comes from databases and collections of raster data and shapefiles stored in an external file repository. It also gives examples of displaying geodata in QGIS using a map of Annette Island, and introduces sample data relating to a German Pietist community in Russia that is stored in different file formats.