Al-Ghazali (d. 505/1111) is one of the most influential thinkers of Islam. There is hardly a genre of Islamic literature where he is not regarded as a major authority. Islamic Law, Sufism, ethics, philosophy, and theology are all deeply shaped by him. Yet in the past thirty years, the field of Ghazali-studies has been shaken by the realization that Avicenna (Ibn Sina, d. 428/1037) and other philosophers had a strong influence on him. Now, after the 900th anniversary at his death, the field emerges stronger than ever. This second volume of Islam and Rationality: The Impact of al-Ghazali brings together twelve leading experts on al-Ghazali who write about his thought and the impact it had on later Muslim thinkers.