This document discusses the concepts and definitions of planning. Planning involves setting objectives and determining a course of action to achieve those objectives. It requires managers to be aware of environmental conditions and forecast the future. Planning is deciding in advance what needs to be done and involves selecting objectives, policies, and programs from alternatives. Key elements of planning include gathering information, setting goals, devising strategies, implementing plans, monitoring performance, and evaluating effectiveness. The document provides examples of companies like Nokia and Yahoo that declined due to a lack of planning, as well as examples of companies like Toyota and Tesla that improved through effective planning.