<div><b><u>Choropleths</u></b> shade in areas of a map to represent the measurement of a statistical variable, such as <i>number of specific Google keyword by state </i>or <i>population density by region</i>. A series of choropleths by <a href="http://www.zeit.de/feature/german-unification-a-nation-divided">Zeit</a> shows shows some useful and interesting insights about Germany.<br></div>