Network Graph shows connections among a set of entities, thereby creating a graphical depiction of the network.
Entities in a Network Graph are displayed as nodes, and the relationships between them are represented as lines called edges. Nodes can have different colors and sizes. Edges, in turn, can have different colors and thicknesses.
Network Graphs are among the objects of study in discrete mathematics. They can also be optimal for various use cases such as visualization of the relations between people, companies, cities, and so on.