Oliver Leaman 
The Biographical Encyclopedia of Islamic Philosophy [PDF ebook] 

Philosophy flourished in the Islamic world for many centuries, and continues to be a significant feature of cultural life today. Now available in paperback,
The Biographical Encyclopedia of Islamic Philosophy covers all the major and many minor philosophers, theologians, and mystics who contributed to its development.
With entries on over 300 thinkers and key concepts in Islamic philosophy, this updated landmark work also includes a timeline, glossary and detailed bibliography. It goes beyond philosophy to reference all kinds of theoretical inquiry which were often linked with philosophy, such as the Islamic sciences, grammar, theology, law, and traditions. Every major school of thought, from classical Peripatetic philosophy to Sufi mysticism, is represented, and entries range across time from the early years of the faith to the modern period.
Featuring an international group of authors from South East Asia, the Indian Subcontinent, the Middle East and North Africa, Europe and North America,
The Biographical Encyclopedia of Islamic Philosophy provides access to the ideas and people comprising almost 1400 years of Islamic philosophical tradition.