A Vennerable Challenge


A Venn diagram is an unusual choice for data representation. It serves a very specific purpose, to show two or three sets and how they intersect. What works well to teach children the basics of set theory might not be the best for visualizing set-based data, however.
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Robert Kosara,
A Vennerable Challenge,
American Scientist, vol. 97, no. 1, pp. 58–59, 2009.