Handbooks, manuals, etc Handbooks 38 Management 37 Handbooks, manual, etc 32 English language 25 Report writing 19 Rhetoric 18 Nursing 17 Grammar 16 Training of 15 Employees 14 Leadership 13 Research 13 Drugs 12 Public administration 12 United States 12 Diseases 11 Study and teaching 11 Office practice in government 10 Public speaking 10 Mechanical engineering 9 Handbook, manuals, etc 8 Handbooks, manuals etc 8 Personnel management 8 Piloting 8 Quality control 8 Armed Forces 7 Clinical medicine 7 First aid in illness and injury 7 Testing 7