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