Vice President Kamala Harris has once again bizarrely professed her love for an elementary school tool: the Venn diagram. "I love Venn diagrams," the vice president said at a White House event ...

A Venn diagram is a way of grouping different items. These groups are known as sets. We have a set of golf clubs or a set of dishes – these are just groups of those items. We write a set using a ...

Neil Gordon does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...