Communication is defined as the exchange of information through symbols. There are three types of communication flow within organizations: downward, upward, and lateral. Downward communication refers to messages from higher levels of management to lower levels, such as directives passed down the chain of command. Upward communication involves information moving from lower to higher levels, like feedback or grievances. Lateral communication occurs between peers of the same level who are not in a superior-subordinate relationship. Effective communication is important for coordination within organizations and helping people work together.