Autobiography
This Boy's Life is non-fiction, and since it's told by its own subject, that lands it pretty clearly on autobiography's turf. Wolff writes about his own experiences, unexceptional in the grand scheme of things, but which helped make him into the person he became. Like a lot of biographies, it helps us get closer to the biograph-ee. But because Wolff's decisions didn't change world events or start a pop sensation or anything, it's intended to be a bit of an everyman story. Hopefully, we can see some of ourselves in Jack's life story, and maybe feel a little closer to people in general because of it.