This document provides an overview of organizational behavior from chapters 1-3. It defines organizational behavior as the study of individual, group, and organizational level factors that influence behavior in organizations. Interpersonal skills are important for managers to be effective as they achieve goals through people. The behavioral science disciplines of psychology, social psychology, sociology, and anthropology all contribute to understanding organizational behavior. Managers face challenges in applying concepts while also having opportunities to improve customer service, work environments, and ethics.