"The Siege of Jerusalem (637)" is a non-fiction book that deals with the siege and conquest of Jerusalem by the Rashidun army in 637 AD. This decisive military confrontation took place during the Islamic invasion of the Byzantine Empire, shortly after the defeat of Byzantine troops in the Battle of Yarmouk. The book highlights the circumstances of the siege, the role of Patriarch Sophronius, and the personal arrival of Caliph Umar in Jerusalem to accept the surrender. The Muslim conquest of Jerusalem led to the consolidation of Arab control over Palestine and had far-reaching effects on the religious landscape of the city, which is of great significance to Islam as well as Christianity and Judaism. The book provides a detailed analysis of the events and their historical relevance, including the restoration of religious freedom for Jews in Jerusalem after centuries of expulsion.