Bill Moyers' website* in 2012 put a graphic online  that compares the 1 percent's average income with the average income of the bottom 90 percent. It's a pretty shocking graphic. And of course, it is only looking at income, not accumulated wealth.
Additionally, the authors describe key changes in U.S. business attitudes and legislation and links them to the increases in the income of the 1 percent.
If you've been following the calls to reduce the income gap, it's a graphic worth your meditation.
*An earlier version of this blog misstated the author of the blog.