The author takes a managerial approach to the study of organizational behavior with an emphasis on improving work performance through a better understanding of human resources. Acknowledgements, Management and Organizational Behavior, The Nature of Organizational Behavior, Approaches to Organization and Management, The Organizational Setting, The Individual, Individual Differences, The Process of Perception, Groups and Leadership, The Nature of Groups, Group Processes and Behavior, The Nature of Leadership, Context of the Organization, Organizational Goals and Objectives, Organization Structure and Systems, Contingency Approach to Organization and Management, Management as an Integrating Activity, The Nature of Management, Managerial Behavior and Effectiveness, Organizational Processes, The Nature of Work Motivation, Job Satisfaction and Work Performance, The Nature of Delegation, The Nature of Management Control, The Personnel Function, Personnel and Employee Relations, Staffing the Organization, Improving Organizational Performance, Organization Development, Management Development and Organizational Effectiveness, Conclusion, Index.