Visualize This: The FlowingData Guide to Design, Visualization, and Statistics

Learn to data.

Simple tool for proportional area charts

There might be times when you want to visualize data with area, but want to use irregular shapes that aren’t strictly squares. This straightforward tool by Krisztina Szucs lets click-and-drag for custom shapes. Enter values and drag the corners to make longer, shorter, wider, and narrower.