This definition is provided by Evergreen Data:
Diverging stacked bar charts are great for showing the spread of negative and positive values, such as Strongly Disagree to Strongly Agree (without a Neutral category) and because they align to each other around the midpoint, they handle some of the criticism of regular stacked bar charts, which is that it is difficult to compare the values of the categories in the middle of the stack.
Andy also shared this post in October 2016:
The associated blog post from Andy Kriebel is here:
Terrific post here from Data Revelations:
Amanda Patist at The Information Lab shared this post:
A post of my own explores how to add a “central axis” to diverging bar charts:
I can’t find the original link to the Viz containing the image below. I believe it relates to #MakeoverMonday, so if anyone can point me in the right direction, I’ll readily link and credit the Viz creator: