Title
- Speculum Christiani1
- Speculum anime1
- Speeches1
- Splendor paternae gloriae1
- Sportula fragmentorum1
- Statements from the Council of Basel1
- Stations of Rome1
- Stimulus amoris1
- Stratēgikos1
- Streeter-Piccard Hours1
- Summa1
- Summa chiromantia1
- Summa confessionis1
- Summa contra gentiles1
- Summa de matrimonio1
- Summa de poenitentia et matrimonio1
- Summa metrica1
- Summa penitentiae1
- Summa theologiae1
- Sumula sumularum magistri Johanne Wyclif1