What is the author's tone in The Autobiography of Benjamin Franklin by Benjamin Franklin?

The tone of Franklin's autobiography is one of mostly humor. It is like Franklin is watching his life with a laugh track in the background. Many of the events were not funny, of course, and those are approached with a sense of having learned an important lesson. There were experiences that were outrageous and unfair, but Franklin is not bitter in his writings. All the moments in his life, good and bad, shaped him to become the great man the world has come to know.