Network visualization is the process of representing and analyzing networks and their relationships using visual tools and techniques. This research area focuses on developing methods and algorithms for visualizing complex networks, such as social networks, communication networks, biological networks, and more. The main goal of network visualization is to help users understand the structure, patterns, and dynamics of networks, as well as to uncover hidden insights or patterns within the data. This research area often involves interdisciplinary collaborations between computer science, data visualization, and network science to create effective and user-friendly visualizations of network data.