Venn Keynote Charts templates that depict all possible intersections of sets, relations between classes (volume terms), as well as describe the logical relations between a finite number of data sets. Usually this kind of data visualization is used to describe two or three sets.
Keynote Venn Charts - visual tool to work with sets. These graphs are shown all possible intersection of sets. Venn charts build intersecting sets, conclude them in the universe. There are areas equal to the number of intersections. Here you will find examples of ready to create templates of Euler-Venn.