Bianca, Stefano, ed. 2007. Medieval Citadels Between East and West. Italy: Aga Khan Trust for Culture
This book includes a series of essays on the historical origins and evolution of three citadels in Syria: Aleppo, Masyaf, and Salah al-Din. Conservation efforts at the three sites, undertaken under the auspices of the Aga Khan Development Network (AKDN), are also documented.