Investopedia / Xiaojie Liu A Venn diagram is a chart that uses overlapping circles to show the traits that are shared and not shared by two or more sets of things being compared. A Venn diagram is ...

A Venn diagram captioned: "In a survey of 250 European travelers, 93 have traveled to Africa, 155 have traveled to Asia, and 70 have traveled to both of these continents, as illustrated in the Venn ...