This document discusses key concepts in organization and management including organizational structure, chain of command, span of control, line and staff managers, the roles and qualities of effective managers, delegation, leadership, and trade unions. It defines organizational structure as the levels of management and division of responsibilities. The chain of command allows instructions to pass from senior to lower management while span of control refers to the number of subordinates a manager oversees. Delegation gives subordinates authority over tasks and has advantages for both managers and subordinates. Trade unions group workers to protect their interests and have advantages like strength in numbers but also costs and potential disagreements.