Organizational behavior (OB) is the study of how individuals and groups act within organizations, aiming to improve organizational effectiveness through understanding, predicting, and controlling human behavior at work. The field emphasizes the importance of individual, interpersonal, and group dynamics, as well as effective communication and organizational climate for enhancing productivity and employee satisfaction. Different models of OB, including autocratic, custodial, supportive, and collegial, highlight varying managerial approaches and their impact on employee performance and organizational outcomes.