Network analysis is a method used to examine complex systems such as social networks, transportation networks, and computer networks. It involves studying the relationships between individual entities, often represented as nodes, and the connections between them, known as edges. By analyzing these connections, network analysis can provide insights into patterns, structures, and behaviors within a network. It can also help identify influential nodes, detect communities or clusters within the network, and predict the spread of information or diseases. Network analysis offers valuable applications in various fields, including sociology, computer science, marketing, and public health.