The document discusses several theories of motivation including:
1. Maslow's hierarchy of needs which proposes that people are motivated to fulfill physiological, safety, social, esteem, and self-actualization needs in that order.
2. Herzberg's two-factor theory which distinguishes between motivational factors like achievement that increase job satisfaction and hygiene factors like salary that prevent dissatisfaction.
3. Vroom's expectancy theory which proposes that motivation depends on expectations of effort leading to performance and rewards, known as expectancy, instrumentality, and valence.