Library classification schemes 67 Decimal Classification 61 Good and evil 27 English drama 24 Philosophy 24 History 19 Classification 16 Novel 15 Recent progress in medicinal plants -- Indexes--- Medicinal plants -- Research -- Indexes-- Materia medica, Vegetable -- Research -- Indexes 15 Religion 13 Deway decimal classification 12 Fiction 11 Medicinal plants 11 Recent progress in medicinal plants -- Indexes--Medicinal plants -- Research -- Indexes--Materia medica, Vegetable -- Research -- Indexes 11 DDC 10 Dewey Decimal Classification 10 Ethics 9 Classification, Dewey decimal 8 English literature 8 Dewat decimal classification 7 English fiction 7 Library Science 7 Literature 7 Agricultural Entomology 5 Crystallography 5 Drama 5 English fiction-- Literature 5 India 5 Library Classification 5 Literature English 5