This is one rule of data visualization that I see broken too often: when it comes to bar charts, the y-axis must begin at zero. Check out this post, where we'll look at a specific example and discuss why.

In this guest post by Jeff Shaffer, he outlines his view on creating effective data viz via the "Shaffer 4 C's of Data Visualization." He shows the 4 C's applied to an example and shows and discusses a couple different remakes to improve.

In this post, I outline the shortcomings of these colorful donuts and look at another way to visualize this data.

Word clouds created a bit of buzz when they first became popular. However, I often find that upon further evaluation they tend to be a letdown—full of fluff without so much informative value. Check out this post for my discussion on why and a word cloud makeover.