Motivation, Primary Motive, Secondary Motive, Social Motives, Psychological Motives, Types of Motivation, Intrinsic Motivation, Extrinsic Motivation, Work Motivation Approaches, Content Theories of Motivation, Maslow Hierarchy of Needs, Alderfer’s ERG Theory, The Process Theories of Work Motivation, Vroom’s Expectancy Theory of Motivation, Herberg’s Two?Factor Theory of Motivation