Avicenna, Arabic Ibn Sīnā, was a Muslim physician, the most famous and influential of the philosopher-scientists of the medieval Islamic world. He was particularly noted for his contributions in the fields of Aristotelian philosophy and medicine. He composed the Kitāb al-shifāʾ (Book of the Cure), a vast philosophical and scientific encyclopaedia, and Al-Qānūn fī al-ṭibb (The Canon of Medicine), which is among the most famous books in the history of medicine.