The book is written by K.A. cresol; Publisher: Oxford University Press, reviewed and added to by James Wilson, translated and verified by Abdullah Ali Al-Ruhaibi. The book consists of two parts. In its first part, it presents two periods: the beginning of Islam and the Umayyad era. At the beginning of Islam, he discussed the construction of the Holy Kaaba, the first mosques, and the Emirate House in Kufa. He also discussed the architectural works accomplished by the Umayyad Caliph Al-Walid bin Abdul-Malik, and the achievements of Caliph Suleiman, Yazid II, and other Muslim princes and governors, reviewing the architectural development that had occurred. In the second part, it reviews architecture in the Abbasid era, and examples of architectural origins that continued until the fall of the Abbasid state, enumerating countries and regions such as: Egypt, Tunisia, Isfahan, Kairouan, and other regions in which architectural systems developed, especially the luxurious mosques included in the book that came in 797. Page of large pieces.