Title
- Song of Solomon1
- Sophologium1
- Specchio di Croce1
- Speculum Beatae Mariae Virginis1
- Speculum Christiani1
- Speculum anime1
- Speeches1
- Sphaera mundi1
- Spirto gentil magnanimo et sublime1
- Splendor paternae gloriae1
- Sportula fragmentorum1
- Statements from the Council of Basel1
- Stations of Rome1
- Sticherarion1
- Stories of saints1
- Stratēgikos1
- Streeter-Piccard Hours1
- Sufi metaphysics1
- Summa1
- Summa chiromantia1