Title
- Sihah1
- Sirr al-asrār fī ʻilm al-āthār ; Shamsīyah fī al-kashf ʻan mā awdaʻ fī al-Jadāwil al-zahrīyah1
- Sketchbook1
- Societas sanctae annae1
- Sommaria relatione et breve avviso1
- Somme le roi1
- Sonectorum et cantilenarum liber; Triumphorum liber ... [etc.1
- Speculum monachorum1
- Splendor solis1
- Statements from the Council of Basel1
- Storia d'Ungheria1
- Subḥat al-malāʼikah baʻda Injīl Yūḥannā fī ṣalāt bākir. Ṣalāt niṣf al-layl1
- Summa aurea1
- Summa de casibus conscientiae1
- Summa de vitiis1
- Summa dictaminis1
- Summa logicae1
- Summa metrica1
- Summula de casibus1
- Survey of property1