This chapter discusses organizational behavior. The organizational behavior can be defined as “a field of study that investigates the impact that individuals, groups and structures have on behavior within organization, for the purpose of applying such knowledge toward improving an organization\'s effectiveness”. Frederick Winslow Taylor was the first person who attempted to study human behavior at work using a systematic approach. Taylor studied human characteristics, social environment, task, physical environment, capacity, speed, durability, cost and their interaction with each other. The OB discipline has borrowed from different disciplines namely, Political Science, Anthropology, Social Psychology, Sociology, and Psychology. Job satisfaction is the general attitude toward one\'s job; the difference between the amount of rewards worker receives and the amount he should receive.