Subject
- Jazz18,754
- Constitutional law17,991
- Hymns, English17,629
- Jesus Christ16,810
- English language16,200
- World War, 1914-191816,095
- Sermons, English15,664
- Science15,647
- Art15,095
- Human rights14,954
- Children14,829
- English literature14,505
- American literature14,302
- Political science13,671
- Operas13,376
- Democracy13,198
- Great Britain. Foreign Office13,134
- National security13,042
- English poetry13,005
- American poetry12,981