- Speeches, addresses, etc., Italian1
- Spenser, Edmund, 1552?-15991
- Spinola family1
- Spirits1
- Spiritual exercises1
- Spiritual life--Catholic Church1
- Stained calf bindings1
- Statutes and codes1
- Stephen, Saint, -approximately 361
- Stilicho, Flavius, -4081
- Stirton, John, 1871-19441
- Stoddard, Anthony, 1678-17601
- Sufi literature1
- Sufism--Prayers and devotions1
- Sundials1
- Symbolism1
- Syria--Damascus1
- Syriac scripts1
- Tales1
- Talkhīṣ Miftāḥ al-ʻulūm (Qazwīnī, Jalāl al-Dīn Muḥammad ibn ʻAbd al-Raḥmān)1