Who was the Persian doctor wrote the medical textbook?

The Persian Doctor Who wrote the influential medical textbook is Avicenna, also known as Ibn Sina. His seminal work, "The Canon of Medicine" (Al-Qanun fi al-Tibb), compiled and expanded upon the medical knowledge of his time and served as a standard reference in both the Islamic world and Europe for several centuries. Avicenna's contributions to medicine, philosophy, and science have made him one of the most prominent figures in the history of medicine.