“His response was to fight it with the only weapons at hand—passive resistance and open displays of contempt.” ― Kurt Vonnegut, The Sirens of Titan
How to Make Maps and Influence People http://news.nationalgeographic.com/2015/10/151022-data-points-how-make-maps-influence-people/
Maps are one of the most trusted forms of communication – which makes them great for getting your point across. A look at the dark art of cartographic persuasion.
Another attempt to say it plain, which is, even then not simple.