Gapminder Tools: the animated bubble chart
Four variables at once: income, health, population as area and region as colour, with time as motion. The chart Hans Rosling narrated live, and it still rewards being driven by hand.
No preview is available from the publisher, so this is a diagram of the chart type, not the artifact itself.
By
Gapminder Foundation
Where
Public statistics · Global development
Form
Interactive · to teach
Visual
Position, Area, Colour, Movement
You can
Play the years, Trail a country, Swap the axes
Data
Gapminder, UN and World Bank series
Original