This document defines management and discusses its key concepts, functions, importance, and levels. Management is defined as planning, leading, organizing, and controlling resources to achieve organizational goals efficiently. The four main functions of management are planning, organizing, leading, and controlling. Planning involves deciding goals and actions in advance. Organizing is grouping people into departments based on tasks. Leading includes issuing instructions, motivating employees, and supervision. Controlling establishes performance standards and takes corrective actions. There are three levels of management - first line managers supervise employees, middle managers organize resources, and top managers set goals and monitor performance.