The document discusses various concepts related to planning. It defines planning as the process of deciding in advance what is to be done, where, how and by whom. Planning involves setting goals and determining the course of action to achieve those goals. There are different types of plans like strategic plans, tactical plans, and operational plans developed at different organizational levels like corporate, business, and functional levels. Effective planning is important as it helps minimize uncertainty, promote coordination, and tackle complexities of modern business.