Coordination is the integration and synchronization of group efforts to accomplish common objectives. It ensures smooth interplay of management functions and achieves goals efficiently without waste. Coordination is not a separate function but is inherent in all management functions like planning, organizing, staffing, directing, and controlling. It requires balancing, timing, and integrating diverse specialized activities to establish harmony and unity of action. The key principles of effective coordination include direct contact, continuity, dynamism, timing, and reciprocal relationships.