Yes, it is 20 minutes long, but as far as data visualization, it is the best 20 minutes I have ever spent on this topic. Hans knows his stuff. The way he presents is one thing, the way that the animated bubble chart presents is another. I have been struggling to find a product that can do this type of stuff. Think about it, the amount of data behind this is not insane, probably pretty simple, but if you were to see it in "report" form (i.e. another spreadsheet) it would not have the same impact as the viz does. I am not the only one that points to this presentation at TED as what turned me onto trying to make data better, and to be honest we are all better off for having seen it.
BTW, TED talks are always a good way to spend your lunch (so get off of Farmville for a couple of minutes a day and learn something new).
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