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 ...

There are lots of ways we can represent data in visual ways: a bar graph, a pie chart, an interpretive dance if you're into that sort of thing. But one fun way to present information is through a Venn ...

Today’s Google Doodle celebrates British logician and philosopher John Venn, who would have been 180 today. The clever interactive cartoon turns the two Os in Google into a Venn Diagram, which Venn ...

English mathematician, logician and philosopher John Venn introduced the Venn diagram in the 1880s. A Venn diagram uses overlapping circles to illustrate the logical relationships between two or more ...