Circular arc graphs are a type of graph where vertices are represented by arcs on a circle. Each arc corresponds to a vertex, and edges are formed when arcs overlap. This structure allows for a clear visual representation of relationships between vertices, making it easier to analyze connections. These graphs are useful in various fields, including computer science and graph theory. They can model problems like interval scheduling and network design, where overlapping intervals or connections need to be efficiently managed. Circular arc graphs provide a unique way to visualize and solve such problems.