- Post roads--France--Maps1
- Post roads--Germany--Maps1
- Post roads--Italy--Maps1
- Postal service--France--Maps1
- Postal service--Germany--Maps1
- Postal service--Italy--Maps1
- Prayers and devotions1
- Priests1
- Processionals (Liturgical books)1
- Psalters1
- Psychiatrists1
- Public health administration1
- Scribes1
- Segregation1
- Skeletons1
- Sorbian languages1
- Starvation1
- Strikes and lockouts1
- Swine1
- Tarot cards1
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
