During the school season, offline stationery stores are once again crowded with parents and students shopping. What’s in the stationery stores? If you have recently visited a stationery store, you ...

Neuroscientists are zeroing in on how special kinds of brain cells help us see things that aren't actually there.

Your eyes are probably glazing over just reading this.  A reader named John wrote to me with the scenario above, and my first thought was: They need a Sankey diagram.  Unless you are deep in the data ...