Organizational behavior is a field that studies how individuals, groups, and structure influence behavior in organizations and how to apply that knowledge to improve effectiveness. It examines topics like motivation, groups, communication, leadership, and culture. The course takes a multilevel approach analyzing behavior at the individual, group, and organizational levels and a cross-cultural approach considering cultural influences on management theories. Understanding human behavior is important for effective managerial decision-making and skills like technical expertise, relationship-building, and strategic thinking are essential at different management levels.