Tufte calls it the "Lie factor": size of graphic / size in data. For graph 2, the lie factor for each bar graph is: IE: .25 / .62 = .403 FF: .25 / .2383 = 1.

Tufte calls it the "Lie factor": size of graphic / size in data. For graph 2, the lie factor for each bar graph is: IE: .25 / .62 = .403 FF: .25 / .2383 = 1.04 Safari: .25 / .0417 = ~6 Chrome: .25 / .034 = 7.35