There is visualization in practice and there is visualization in theory and research. Each should inform the other, but it typically doesn’t happen that way. Kennedy Elliot, a graphics editor at the Washington Post, provides a rundown of one branch from the research side of things: human perception. There are quite a few studies.
Human perception for visualization
Life expectancy changes
The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.
The Best Data Visualization Projects of 2014
It’s always tough to pick my favorite visualization projects. Nevertheless, I gave it a go.
Reviving the Statistical Atlas of the United States with New Data
Due to budget cuts, there is no plan for an updated atlas. So I recreated the original 1870 Atlas using today’s publicly available data.