Why expert graphic designers, data analysts, and software power users can still make bad charts

As I discuss in the pre-workshop video for my Practical Charts course, many charts don’t do a great job of serving the purpose for which the chart was created in the first place. I think that there are several reasons why this is such a common problem and this post focuses on a big one, which is that there’s a lot of confusion around exactly what skills are needed in order to create truly useful charts.

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