Based on estimates from the Crowd Counting Consortium, the Washington Post shows the increasing number of protests on college campuses over the past few weeks.
A set of maps show the locations, and a set of packed-circle charts show the increase of three weeks. Larger circles indicate larger crowd size. Darker yellow and black border indicate police presence.
Visualize This: The FlowingData Guide to Design, Visualization, and Statistics (2nd Edition)
