This document summarizes several major theories of motivation presented by Adil Noorani. It outlines Abraham Maslow's hierarchy of needs theory which identifies five levels of human needs from physiological to self-actualization. The document also briefly mentions other motivation theories by Herzberg, Alderfer, McClelland, McGregor, Broadwater, Pearson and Vroom. Maslow's theory is then explained in more detail with implications for recognizing individual differences, using goals and feedback, allowing participation in decisions, and ensuring an equitable reward system.