- Sphaera mundi (Sacro Bosco, Joannes de)2
- Spirit2
- Spiritual exercises2
- Spiritual life--Islam2
- Sprinkled edges2
- Stained calf bindings2
- Stars--Names2
- State, The2
- Statutes and codes2
- Stephen, Saint, -approximately 362
- Storytelling2
- Strozzi, Giovanni2
- Style manuals2
- Sufis--Biography2
- Suhrawardī, ʻUmar ibn Muḥammad, 1145-1234. ʻAwārif al-maʻārif2
- Suhrawardīyah2
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? ʻUqūd al-Maqūlāt2
- Sullam al-ʻulūm (Bahārī, Muḥibb Allāh ibn ʻAbd al-Shakūr)2
- Summa sententiarum2
- Superstition2