However, when I recently presented a Pareto chart to a Senior VP of an organization we are working with, I noticed everyone in the room had tilted their head to the side, in order to read what each category said underneath each bar.
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It quickly occurred to me that anytime you present a Pareto chart with more than a couple words per category, you should flip your Pareto chart on its side, so that the categories are easily legible, and you don't give your customer a sore neck (since you're already a pain in their neck as it is!)
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