When Baghdad Ruled the Muslim World

The Great Arab Conquests

The Armies of the Caliphs

The Prophet and the Age of the Caliphates

The Byzantine And Early Islamic Near East (Variorum Collected Studies)

At the Caliph's Court

Muslim Military Architecture in Greater Syria from the Coming of Islam to the Ottoman Period

Muslim Spain and Portugal

Crusader castles

The History of Al-Tabari, vol. XXIX. Al-Mansur and Al-Mahdi

The court of the Caliphs