Title
- Societas sanctae annae1
- Sommaria relatione et breve avviso1
- Somme le roi1
- Sonectorum et cantilenarum liber; Triumphorum liber ... [etc.1
- Speculum monachorum1
- Speeches2
- Sphaera mundi2
- Splendor solis1
- Statements from the Council of Basel1
- Statute14
- Statutes2
- Storia d'Ungheria1
- Subḥat al-abrār.1
- Subḥat al-malāʼikah baʻda Injīl Yūḥannā fī ṣalāt bākir. Ṣalāt niṣf al-layl1
- Sufi texts1
- Summa3
- Summa aurea1
- Summa de casibus conscientiae1
- Summa de vitiis1
- Summa dictaminis1