Oliver Leaman & Seyyed Hossein Nasr 
History of Islamic Philosophy [PDF ebook] 

Islamic philosophy has often been treated as being largely of historical interest, belonging to the history of ideas rather than to philosophical study. This volume successfully overturns that view. Emphasizing the living nature and rich diversity of the subject, it examines the main thinkers and schools of thought, discusses the key concepts of Islamic philosophy and covers a vast geographical area. This indispensable reference tool includes a comprehensive bibliography and an extensive index.