In Search of Useful Market Research Displays: Don’t Forget Venn Diagrams. Bored with bar and pie charts? Maybe it’s time to rethink the types of graphics you are using to display key research findings.
One graphic display that makes rare appearances in market research reports is the classic Venn diagram. It’s a wonderfully intuitive way to show overlapping groups. Attributed to John Venn, the Venn diagram was first introduced in 1880.