This document discusses effective communication. It defines communication as the transfer of information from one entity to another through speech, writing or signs. The main purposes of communication are to distinguish humans from animals and distinguish individuals. The communication process involves a sender encoding a message, sending it through a channel, a receiver decoding it, and providing feedback within a context. Barriers to effective communication can occur at each stage and must be removed through clear, accurate messaging; appropriate language and cultural understanding; using the right channels; considering the receiver; and paying attention to feedback.