In over 1200 pages the book explores many varieties of Islamic thought as follows:
Section I - the concept of philosophy in Islam, the background of Islamic philosophy,Sunni theology,Shia theology,Ismaili philosophy, and Islamichumanism.
^Seyyed Hossein Nasr and Oliver Leaman, ed. (2001).History of Islamic Philosophy. History of World Philosophies. Routledge.
^Burnett, Chris (1997). "The Near and Middle East - Seyyed Hossein Nasr and Oliver Leaman (ed.): History of Islamic philosophy. (Routledge History of World Philosophies, Vol. 1, Parts 1 and 2.) xx, 780 pp.; xiv, 783–1211 pp. London and New York: Routledge, 1996. £120".Bulletin of the School of Oriental and African Studies.60 (3):552–553.doi:10.1017/S0041977X00032675.