Classification Books 21 Cataloging 15 Identification 15 Fingerprints 13 Biology 11 Personnel management 10 Research 9 Civil service 8 Civil service positions 8 Data processing 8 Job evaluation 8 Malaysia 8 Officials and employees 8 Salaries, etc 8 Soils 8 Classification, Library of Congress 7 Plants 6 Science 6 Mental illness 5 Diagnosis 4 Information storage and retrieval systems 4 Land 4 Methodology 4 Minerals 4 Statistics 4 Technology 4 Administrative 3 Artificial intelligence 3 Biodiversity 3