A Treemap chart provides a hierarchical view of data and makes it easy to spot patterns. The treemap chart branches are represented by rectangles, and each sub-branch is shown as a small rectangle.

You can blend data from other sources to create a comparison. One idea is to import Google Analytics data into R or Google Data Studio and create a treemap if a segment is unavailable in the platform.

Since The Texas Tribune launched in November 2009, the Ads Infinitum blog has collected and posted political advertisements — more than 70 in all — from candidates in both parties running for ...