This book entitled Organizational Behaviour is the study of individual and group behaviour in various work setting. This book consists of ten chapters such as Introduction, Approaches to organizational behaviour, Perception, Motivation, Managerial Communication, Stress Management, Individual and Group Attitude, Organizational Structure and Design, and Organizational Development. It is useful for the students specializing in Management in general and Human Resource Management in particular and for those in the field of behavioural sciences. It is equally useful for management practitioners who want to enrich themselves on human behaviour to manage their workforce more effectively and efficiently.