Visualizing hierarchies
Bonus: setting gridlines on a circular chart
Hierarchy
Decluttering charts
Decluttering charts
Making major things easy, revisited
Making important things easier, part 2
Ranks, labels, metrics, data and alignment
A rhombus shaped chart on airline rankings
Visualizing extremes
Nice NYT chart showing weather extremes
Small tweaks that make big differences
Some small tweaks to data graphics make a huge difference