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Pie Charts: The Prime Evil

Dave Hoffman

Dave Hoffman is the Murray Shusterman Professor of Transactional and Business Law at Temple Law School. He specializes in law and psychology, contracts, and quantitative analysis of civil procedure. He currently teaches contracts, civil procedure, corporations, and law and economics.

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8 Responses

  1. Greg says:

    I don’t know about evil, but, here is the world’s best pie chart.

  2. Howard says:

    Well from your extensive research I think this makes it pretty clear. If two slices are similarly sized, it’s harder to see the difference in a pie chart vs a bar chart or table.

  3. Adam says:

    Use a bar graph, not a dot chart. It’s easier to compare the hieght of bars than the slices of pie.

  4. KipEsquire says:

    Pie charts are bad because they make people hungry for pizza and they are no longer able to concentrate.

  5. John says:

    See Edward Tufte.

  6. Homer says:

    mmmm, pizza.

  7. Belle Lettre says:

    “pie charts bad” has to be my new favorite boolean search term. It sounds like a judgmental baby researcher.

    Could be the next article title–although you just can’t beat your own “Best Puffery Article Ever.” You peaked early, dude.

  8. Sohnee says:

    There is quite a log of discussion on this topic – and the general feeling appears to be that pie charts were a bit of a mistake.

    http://www.stevefenton.co.uk/Content/Pie-Charts-Are-Bad/

    http://blog.jgc.org/2009/08/please-dont-use-pie-charts.html

    http://www.perceptualedge.com/articles/08-21-07.pdf (PDF)