Who wrote Amos in the Bible?

This book in the Hebrew Bibles is called "Sepher Amos", the Book of Amos; and, in the Vulgate Latin and Syriac versions, the Prophecy of Amos.

This person, Amos is not the father of Isaiah, as some say. There are no family details regarding, Amos except that this man was a country farmer and herdsman.