This document discusses various motivation theories including Maslow's hierarchy of needs, Herzberg's two-factor theory, expectancy theory, and McGregor's theory X and theory Y. Maslow's hierarchy proposes that people are motivated to fulfill basic needs before moving to higher-level needs. Herzberg's two-factor theory separates motivators like achievement that drive satisfaction from hygiene factors like salary that prevent dissatisfaction. Expectancy theory states that motivation depends on an individual's perception of how their efforts link to performance and rewards. McGregor's theory X assumes people dislike work while theory Y assumes they can exercise self-direction.