Title
- Hādhā al-kitāb min Tafsīr al-kalām al-qadīm al-dāʼim1
- Hādhā al-kitāb yabḥath fī al-lughah1
- Hādhā al-kitāb yabḥathu fī al-lughah al-ʻArabīyah1
- Il viazo di Soria1
- Imagines sepulcrorum et epitaphiorum inscriptiones antiquae1
- In epistulam Ioannis ad Parthos tractatus decem1
- Inbāʼ al-adhkiyāʼ bi-ḥayāt al-anbiyāʼ1
- Indulgence1
- Inferno2
- Institucion de la regla y hermandad de la Cofadria del Sanctissimo Sacramento1
- Institutiones grammaticae2
- Instructions to give safe passage1
- Instructions to the Infante's tutor1
- Inventory1
- Investiture1
- Islamic divination1
- Itinerarium1
- Japanese Buddhist sutras1
- Jónsbók1
- Kabbalistic texts1