Communication networks is a research concept and methodological approach focused on the structural properties and dynamic processes of interconnections through which entities exchange information or resources. It investigates patterns of interaction, flow dynamics, and the influence of network structure on system behavior and outcomes. Key characteristics include the identification and analysis of nodes (entities) and ties (connections), often employing techniques from graph theory and network analysis. Its significance lies in providing frameworks to understand the diffusion of information, coordination of action, and emergence of collective phenomena across diverse systems, ranging from social interactions and organizational structures to biological systems and technological infrastructures.