Bivariate Map

This map stood out to me because of the black background with the white boundary for the country. I really liked how lightness/darkness is used to determine reliability.

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=obqikQZyQxBHSM&tbnid=NGDIg2_QYnvwSM:&ved=0CAQQjB0&url=http%3A%2F%2Fandywoodruff.com%2Fblog%2Fvalue-by-alpha-maps%2F&ei=AJSCUv2ZL4na4AOVxIDwCg&bvm=bv.56146854,d.dmg&psig=AFQjCNFfMbot1-iimrY_Flsmt21vsjQDDw&ust=1384375554195912