What is Venn Diagram?

A Venn diagram (or known as set diagram) shows all possible logical relations between a finite collection of different sets. These diagrams depict elements as points in the plane, and sets as regions inside closed curves. A Venn diagram consists of multiple overlapping closed curves, usually circles, each representing a set. The points inside a curve labelled S represent elements of the set S, while points outside the boundary represent elements not in the set S. Thus, for example, the set of all elements that are members of both sets S and T, S ∩ T, is represented visually by the area of overlap of the regions S and T. In Venn diagrams the curves are overlapped in every possible way, showing all possible relations between the sets.

Guideline for creating Venn Diagrams

• Venn diagrams are most useful for showing relationships between two or more topics or things. The topics must be in some way related or comparable or they are not suitable for a Venn diagram model.
• A Venn diagram is primarily a visual model, it does not necessarily replace note taking, and it is often not suitable for very large amounts of information.
• Don't be afraid to think outside the circles. The space outside both circles is for that other topic that for one reason or another does not fit into either circle.