I see a lot of writers shove charts and flashy tables into their pieces when it really isn’t necessary. Most of the time, these additions offer nothing of value and just distract from the actual article.
When used properly, though, charts are a fantastic way of getting a point across. This is an example of a great visualisation. You don’t have to decipher it, the interpretation is fast and powerful. A mere glance at Spencer’s chart instantly portrays a meaningful message, in a way that a body of text simply couldn’t.