This document discusses communication from several perspectives. It defines communication as the process of passing information between individuals. Effective communication requires clarity, establishing goals, and maintaining logical links between ideas. Communication can aim to inform or persuade and involves both sending and receiving messages. Models of communication include the linear model with a passive receiver and Shannon Weaver's model incorporating two-way exchange. Communication is important for management functions and occurs through various channels within organizations. Barriers like noise and emotions can interfere with communication, while crises threaten organizational operations and reputation.