On my train ride in this morning, I saw an article posted on Twitter about Pell Graduation rates at the 80 largest universities in America. If you want to look at a boring table of static data, just click here . But I wanted to see if there were any patterns, so I copied the table, pasted it into Excel and then opened in Tableau to visualize it. I think it tells an interesting story, although the data set is unfortunately limited, and with no key to merge the data with another set, it loses some potential. Start by looking at the first view. For each institution, there are three columns: The overall six-year graduation rate; the six-year graduation rate of Pell recipients, and the spread, with the values on spread sorted from low to high. In this instance, a negative number means Pell students graduate at a higher rate than the student body overall, and a positive number means just the opposite. As you scroll down the list from top to bottom, ask yourself what makes the patter