How to make a Venn Diagram

A Venn diagram uses overlapping circles to illustrate the similarities, differences, and relationships between concepts, ideas, categories, or groups. Similarities between groups are represented in the overlapping portions of the circles, while differences are represented in the non-overlapping portions of the circles.

Another example:

1 Each large group is represented by one of the circles.

2 Each overlapping area represents similarities between two large groups or smaller groups that belong to the two larger groups.