And the years .. also die

It is written on the front cover of this book that it is an autobiography of the author. Do you see to what extent the phrase applies to what was said by its author? Is it an autobiography, memoirs, or notes written by its author over successive years of his life? He moved from a child to a boy and a young man until he was close to seventy. He did not release his book to the people until he had become more experienced and mature, and he had dozens or even hundreds of secrets that he had hid...