I think you're right, the whole "problem" he's addressing stems from the fact that someone called the original graphics a Venn diagram when they shouldn't have.

I think you're right, the whole "problem" he's addressing stems from the fact that someone called the original graphics a Venn diagram when they shouldn't have. However, I do think that one of his alternatives is actually quite good, and does convey the same information as the original diagram: http://eblong.com/zarf/pic/thod/venn-inside.png http://eblong.com/zarf/pic/thod/venn-inside.png