- Book auctions1
- Booksellers' catalogs1
- Botany1
- Botany, Medical1
- Cabala1
- Cabala and Christianity1
- Calvinism1
- Canning and preserving1
- Canon law1
- Carving (Meat, etc.)1
- Catalogs and collections1
- Catechetical sermons1
- Catenae1
- Christian literature, Latin1
- Christian pilgrims and pilgrimages1
- Christian poetry, Latin (Medieval and modern)1
- Christianity1
- Church history1
- Classical literature1
- Clergy1
Libraries & Collections
- Arts Library
- Bass Library
- Beinecke Library
- Classics Library
- Divinity Library
- Film Study Center
- Fortunoff Archive
- Humanities Collections
- International Collections
- Law Library
- Lewis Walpole Library
- Library Collection Services
- Manuscripts & Archives
- Map Collection
- Marx Science & Social Science Library
- Medical Library
- Music Library
- Sterling Library
- Yale Center for British Art
