Abstract This seminal work of Henry Corbin (1903–1978) is devoted to the history of philosophical thought in Islamic world. The work contains a review of the sacral Shia teaching of the Twelve imams (including explanation of such terms like “nubuwwat”, “walayat”, “ta’wil”, “taqiya” etc) and ismailism; as well as the teachings of mutazilites, asharites, Brethren of Purity, philosophical views of Razi, Biruni, Khwarizmi, Ibn Al-Haitham, Al-Kindi, Farabi, Abu Hamid Gazali; philosophy and metaphysics of Sufism (represented by the mystics Abu Yazid Bistami, Junayd, Hakim Tirmizi, Khallaj, Najm ad-Din Kubra, Jalal ad-Din Rumi, Muhmad Shabistari and others); school of ishrakism (philosophy…