Dictionaries and Encyclopedias
- Encyclopaedia Iranica: A comprehensive research tool dedicated to the study of Iranian civilization in the Middle East, the Caucasus, Central Asia, and the Indian subcontinent.
- Encyclopaedia Judaica: A comprehensive overview of Jewish life and knowledge from the Second Temple period to the contemporary State of Israel.
- Encyclopedia of Islam: Articles on Muslims, tribes and dynasties, crafts and sciences, political and religious institutions, and the geography, ethnography, flora and fauna of various Islamic countries.
- Encyclopedia of the Modern Middle East and North Africa: Overview of the modern Middle East and North Africa.
- Encyclopedia of Women & Islamic Cultures: An interdisciplinary, trans-historical, and global project embracing women and Islamic cultures in every region where there have been significant Muslim populations.