Maps can be used to show all kinds of information. Basic ones can show information with color, more advanced ones can have multiple layers on top of each other, showing things like districts, precincts, county lines, streets, organizer regions, and even have everything layered over a Google Map.
A Basic Color Map
Color is an easy way to show information. I can make maps that show almost any information you can provide me with, provided I can match the information up with an existing map. I charge hourly for making maps, as the complexity varies immensely by state. They are provided as a file you can print at a local printer.