Another exceptional graphic from the Wall Street Journal. The original is located here: https://twitter.com/WSJ/status/429709177926471680
I love the underlying photograph with the circle charts on top. It’s engaging to the everyday reader rather than looking like a boring, scientific chart.
Although Dataviz Purists won’t support the use of circles in this chart, can you imagine the same visualization with bars instead of circles? It wouldn’t work.
Dataviz purists (like me) will certainly mention that the area of a circle isn’t they best way to convey quantity, but that’s offset by the striking impression of the circles, reminiscent of targets.