This document provides an introduction to organizational behavior. It discusses management and its functions and roles. It then covers organizational behavior, including its historical background, nature, scope, key elements, and contributing disciplines. Organizational behavior is defined as the study of how individuals and groups act within organizations. The document outlines different models of organizational behavior including the autocratic, custodial, supportive, collegial, and system models. It also discusses approaches to organizational behavior such as the human resources, contingency, productivity, and system approaches. Finally, it covers opportunities and challenges for organizational behavior.