This document discusses the principles of centralization and decentralization of authority as introduced by Henri Fayol. Centralization involves reserving authority at central points in the organization, such as reserving decision making power at the top level. Decentralization involves systematically delegating authority at all levels of management. The document outlines factors that influence centralization, such as size and diversity of operations, as well as factors that affect decentralization like size of the organization and availability of efficient managers. Advantages of centralization include reduced costs and uniformity, while disadvantages include delay and lack of loyalty. Advantages of decentralization comprise increased motivation and efficiency, while disadvantages include increased costs and lack of uniform action.