The right scale
Oftentimes, picking the right scale for a chart makes all the difference.
Education
Progress and retrogress
Joran E. pointed to this "icky" chart he found on
Hanging tough
Reader Nick B. sent in this example calling it "interesting"
Non-elites
From Mikhail Simkin comes some intriguing analysis of "experts"; in
Adulterated education
A good teacher makes a great difference. Reader Richard M drove this
Is it random?
A puzzle (from Laurie Snell, via the Gelman blog): are the tiles