- Devotional literature20
- Devotional literature, Italian8
- Devotional literature, Latin (Medieval and modern)1
- Diagnosis1
- Dialogues (Literature)1
- Dialogues, Greek1
- Diced leather bindings1
- Dictators as authors1
- Dictionaries1
- Didactic poetry, Latin1
- Digital images30
- Diocletian, Emperor of Rome, 245-3131
- Dion, approximately 408 B.C.-354 B.C.1
- Dionysius, the Areopagite, Saint, active 1st century1
- Diplomacy1
- Diplomatic and consular service, Venetian1
- Directories1
- Discipline7
- Discoveries in geography2
- Diseases1