Each circle represents a billionaire but when appropriate the company that they associated with is labeled. And of course United States leads the way with number of billionaires. I liked seeing the data presented on a map; having a geographic distribution shows off the number of non-US billionaires. It would have been nice to see their net worth included in the infographic.
Personally, I am of the opinion that billionairs are bad for the economy. Global or local. Macro or micro.
A cesspool of wealth sitting still does nothing.
Bring back the 90% tax bracket. Please!