O'kane, Bernard. "Iran and Central Asia." In The Mosque: History, Architectural Development & Regional Diversity, edited by Martin Frishman and Hasan-Uddin Khan, 119-139. New York: Thames and Hudson, 1994.

This is a great coffee table book with nice Islamic architecture photos.  The text is mostly historical and mainly about Iran with some comment on Central Asia and very little about western China.

Sections: Early Mosques; The Seljuq Period (eleventh-twelfth centuries); The Il-Khanid Period (1256-1353); The Timurid Period (1370-1506); Central Asia and Western China, Post-Sixteenth Century; The Musalla; The Safavid Period (sixteenth-eighteenth centuries); The Qajar Period (1779-1924); Modern Mosques.  Descriptors: 1990s, architecture, chapter, coffee table, O, photography, pre-Tsarist.