This document provides an overview of Islamic architecture. It begins with a brief definition of Islamic architecture and its key characteristics. It then discusses the origins and spread of Islamic architecture in regions including the Arabian Peninsula, Iraq, Egypt, Levant, North Africa, Anatolia, Iran, Central Asia, Iberia and the Indian subcontinent. The document outlines the main architectural forms in Islamic architecture like mosques, tombs, palaces and forts. It also discusses terminologies, building components, mosque styles, and provides examples of early mosques like the Mosque of the Prophet Muhammad in Medina which served as the prototype.