
Propoganda maps can be a powerful tool in persuading others to your views.
A new look at the world we map.
Climograph: A graph of monthly average temperature plotted against average humidity. The monthly points are joined by a line. The shape and location of line thus drawn indicates the nature of climate in terms of heat and humidity.
http://www.jsu.edu/depart/geography/mhill/port/tc/graphs.html