the difference between england the uk great britian and the british isles. Ah finally!!! An explanation!
Venn diagrams morphing into Euler circles.
Euler diagram - Wikipedia, the free encyclopedia
Euler Diagrams Overview
Euler and Venn Diagrams: They Aren’t Just for Fun
Euler diagrams . . . see for their use in diagramming syllogisms and for info on Venn diagrams.
How the same information can be shown in different ways using Venn diagrams and Euler diagrams. Click on the image to learn the difference between Venn and Euler diagrams and to see more examples