This document discusses various theories of motivation in the workplace. It covers: 1) Definitions of motivation and different groups of motivational theories including internal, process, and external theories. 2) Early philosophers' perspectives on motivation like Max Weber's protestant work ethic and Freud's view of unconscious motives. 3) Prominent motivational theories like Maslow's hierarchy of needs, McGregor's Theory X and Y, Herzberg's two-factor theory, and expectancy theory. 4) Additional concepts like equity theory, social exchange theory, and causes of motivational problems.