This is a standardized choropleth map showing the population density of the United States. The eastern states have the highest population density. The western and mid-western states have the least population density.
This is nominal area choropleth map of the USA 2008 Election. The data show that the Democrats win most of the state vote and the presidental election.
This statistical map of Napoleon’s Russian campaign of 1812 show the size of Napoleon’s army width of the lines of defence advance (green) and retreat (gold).