Avicenna, or in Arabic, Abu Ali al-Husain ibn Abdallah ibn Sina or simply Ibn Sina (as he is called by Persians) (980 - 1037), was a physician, philosopher, and scientist. He was the author of 450 books on many subjects, many on philosophy and medicine. His most famous works are The Book of Healing and The Canon of Medicine, also known as the Qanun. Ibn Sina was interested in the effect of the mind on the body, and wrote a great deal on psychology. Avicenna's best-known philosophical work is Kitab ash-Shifa (Arabic, "Book of Healing"), a collection of treatises on Aristotelian logic, metaphysics, psychology, the natural sciences, and other subjects. Avicenna's own philosophy was based on a combination of the philosophy of Aristotle and Neoplatonism. Like most medieval philosophers, Avicenna denied the immortality of the individual soul, God's interest in particulars, and the creation of the world in time-all of which were central to mainstream Islamic doctrine

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