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摘要：• Some visual processing requires that we conciouslyinspect the things that we are looking at.• Psychologists refer to this kind of activity as cognitive.• It is graphical cognition which allows us to makestatements like– The largest person is third from the right.– The steepest slope in the graph i 阅读全文

摘要：Some visual processing takes place without anyconcious effort on our part.Psychologists call this preattentive vision.In the context of extracting information from graphs wewill call it graphical perception.Graphs which convey their information at thisunconcious level allow us to extract the informa 阅读全文

摘要：PRESENTATIONSBYKEVIN PURDYPie charts look cooler than other kinds of charts. They're based on pie, after all, and seem less accountant-like than bars, bubbles, and lines. They are, however, often a very wrong way to represent subtle but important differences.Image viaWikipedia.Revolutions, a blo 阅读全文