1. The problem is to describe a Venn diagram, which is a visual tool used to show relationships between different sets. 2. A Venn diagram typically consists of overlapping circles, each representing a set. 3. The overlapping areas represent the intersection of the sets, showing elements common to those sets. 4. Areas that do not overlap represent elements unique to each set. 5. For example, if you have two sets A and B, the Venn diagram has two circles overlapping. 6. The part where the circles overlap is $A \cap B$, the intersection. 7. The parts of the circles that do not overlap are $A - B$ and $B - A$, the unique elements. 8. The entire area covered by both circles is $A \cup B$, the union. 9. Venn diagrams can be extended to three or more sets with more circles overlapping in various ways. 10. They are useful for visualizing logical relationships, probabilities, and set operations.