This document provides an introduction to organizational behaviour. It defines organizational behaviour as the study of what people do in organizations and how their behaviour affects organizational performance. It discusses that organizational behaviour interprets relationships within organizations in terms of the individual, group, and larger social systems. The document outlines the key elements of organizational behaviour including people, structure, jobs, technology, environment, and factors from various contributing fields like psychology, sociology, political science, and economics. It discusses the importance of organizational behaviour for self-development, leadership, motivation, and adapting to emerging challenges. It also outlines some potential shortcomings if organizational behaviour principles are not applied appropriately.