This document discusses the roles of effective communication in the workplace. It defines communication and identifies potential barriers. Managers play important roles in both internal communication with staff and external communication with shareholders, suppliers, and customers. Effective communication can improve the workplace by facilitating problem solving with customers, gathering investor feedback, coordinating with suppliers, and fostering relationships and productivity among employees. The conclusion emphasizes communicating in a way that is clear, complete, concise, concrete, correct, and courteous.