Ibn Sina (Persian: ابن سینا; 980 – June 1037 CE), commonly known in the West as Avicenna, was a Persian Muslim polymath and the most important doctor and Islamic philosopher of his time.
He wrote about 450 works on a wide range of subjects, and about 240 have survived, including 150 on philosophy and 40 on medicine.
His most famous works are The Book of Healing – a philosophical and scientific encyclopedia, and The Canon of Medicine – a medical encyclopedia.