Nominal Area Choropleth Map

http://www.google.com/imgres?um=1&hl=en&biw=1280&bih=662&tbm=isch&tbnid=sHJ0hWn0pAkICM:&imgrefurl=http://illinoisstate.edu/~jrcarter/Geo204/Choro/Tom/&docid=X9DMI6uPqZuQ5M&imgurl=http://my.ilstu.edu/~jrcarter/Geo204/Choro/Tom/calif-correct-4-quartiles%25257B2%25257D.gif&w=469&h=508&ei=hKBLUO6TG4K89gS2gIHwDQ&zoom=1&iact=hc&vpx=383&vpy=132&dur=3866&hovh=234&hovw=216&tx=113&ty=89&sig=104655054681110617605&page=1&tbnh=143&tbnw=132&start=0&ndsp=15&ved=1t:429,r:1,s:0,i:76

Nominal Area Choropleth Map

Nominal Area Choropleth Maps are a type of thematic maps. It shows information by different shading. This one shows percentage of black condo owners in California.