Organizational behavior (OB) involves studying how individuals and groups function within organizations to accomplish work. Managers play an important role as they interact with others and direct activities to achieve organizational and personal goals. Manager's interpersonal skills are important because views of organizations are changing from seeing them as machines to seeing them as social systems where relationships among individuals are important. OB draws on various behavioral disciplines like psychology, sociology, and anthropology to study individual behavior, group behavior, organizational structure, and their impact on organizational effectiveness and efficiency.