Many different people use many different types of maps for many different purposes. Maps all have one thing in common though, they are all models or representations of the oceans and continents of the real world. In the "How Maps Work" module of All About Maps, investigate Mental Maps, Map Media, Map Concepts, Map Elements, Map Projections, and finally, Map Topics. You can go through the sections from beginning to end, or you can jump around! Just select the section you would like to investigate from the legend on the left of your screen or click "Next" to begin with Mental Maps.