This graph is from Ezra Klein's blog on the Washington Post, and the post deals with Obama's and Romney's proposed tax plans. In the article, Klein explains what the numbers mean and adds details about how they would affect other aspects of their economic plans. Specifically, Klein lays out just how Romney would have to keep his campaign promises of not cutting the defense budget, lowering taxes on wealthier Americans, and still attempting to balance the budget. Find out for yourself in the article here.
What I really like about this article is that Klein is fulfilling an important role of a journalist, and that is to make sense of the numbers so that we normal citizens can understand them. While it's plain to see for oneself what both Romney and Obama's tax plans are just by looking at the graph, Klein does a fine job of giving us the context of where each candidate is coming from (Romney making campaign promises and Obama being relatively realistic). It's easier to be objective when you're just talking about numbers, and anyone reading the article is left with the ability to make their own decision about what they mean.