Easy to color code regions corresponding to change in values within sectors

Over 50 squares with size of square corresponding to weight of total and color

indicating value increase or decrease

Try doing that with a

pie chart

Lots of info – yet easy to see relative proportion to total. Try comparing the usa

block compared to the entire treemap/other countries. Brushing and linking

allow for easy drill down access.

Highlight the bottom countries whilst keeping the total in view

Drilldown and filtered upon the smaller countries

Color & labels used to represent different countries

Color used to encode value