This week I decided I wanted to experiment with Slope Charts. The slope chart is the line chart’s fraternal twin. Line charts display three or more points in time while slope charts display exactly two points in time. Defined by Edward Tufte in his 1983 book The Visual Display of Quantitative Information, this type of […]

Source: Jeff Clark, Neoformix, February 26, 2013 Back in February of this year, the Guardian Datablog published an interesting post called Obesity worldwide: the map of the world’s weight. It contains a map that shows with color the rates of obesity around the world.  If you click on a country (for example, I clicked randomly on […]