Dr. John Walton, a Hebrew professor at Wheaton, sent me a list of recommended academic commentaries which I've added to Best Commentaries. But his list also included a grid view that listed books of the Bible on the left and commentaries series on top. Each cell had an icon representing how strongly he recommends the work. With Dr. Walton's permission, I used his idea to build something similar based on the overall rankings in Best Commentaries.
Here's what it looks like

Go check it out: Commentaries Series Rankings