A few days ago, I tweeted about the beautiful map shown- Hurricanes and Tropical Storms since 1851. I added a note about the projection, which may be unusual for someone who was born in Europe, the US, or Continental Asia, as it is centered on the South Pole. Rob Simmon, a data visualizer at NASA Earth Observatory, replied: "I disagree with the map projection choice, far too much distortion of the data, especially in the Northern Hemisphere." That's a legitimate concern. Distorsion is a major challenge when designing maps.
I gave Rob's comment some thought, as it is somehow related to the core idea in The Functional Art: Information graphics are tools; before choosing visual shapes to encode data we should define the tasks our graphics should help readers with.
Via Lauren Moss