You've sat in so many meetings where Microsoft PowerPoint presentations have revealed unexpected truths. The presenter makes you marvel as she shows how the circle marked "profit" overlaps with the ...

A Venn diagram can show data sets such as preferences in market research. When sets intersect (overlap), the elements in the intersection are members of both sets. When the sets have no elements in ...

The man who invented the elegant overlapping circle diagrams would have been 180 today. Infographic: Which Flu Strain Is Most Likely To Bring The Apocalypse? H1N1? Bird flu? Swine flu? Confused? Don’t ...

About a month ago, I wrote about the difficulty of staffing the U.S. Department of Education early in the Trump administration. The secretary, it seemed to me, had been put in a particularly tough ...

Google's latest Doodle marks the 180th anniversary of the birth of English philosopher John Venn, inventor of the Venn diagram. The diagram typically uses two or three circles that represent sets of ...