Pictorial works 297 Popular works 142 History 120 Early works to 1800 82 Management 57 Juvenile literature 56 Leadership 48 Military art and science 48 Islam 42 Work 42 World War, 1939-1945 39 Psychological aspects 38 Work groups 37 Thesis 34 Personnel management 33 Dissertations, Academic 30 Organizational behavior 28 Job satisfaction 27 Biography 26 Quality of work life 26 Success in business 23 Politics and government 22 Description and travel 21 Handbooks, manuals, etc 21 Interpersonal relations 21 Employee motivation 20 Religious aspects 20 Work ethic 20 Organizational change 18 Sufism 18