I really liked The Caves of Steel, sort of liked the sequel, and don't remember a thing about the third other than the cover. So it was likely very forgettable.

I constantly have to remind myself when reading autobiographies (and to some extent with biographies) that the author has his own set of biases and preconceptions that aren't necessarily true.

You and me both. It's why I would like to blitz areas of interest: get as many sides to the story as possible, to build the most rigorous picture of events. Unfortunately, finding multiple high-quality sources covering something is hard, and the less quality nonfiction gets boring fast. Bringing this back to Asimov, one reads his autobiography I, Asimov where he talks about his feelings about dying without ever mentioning he was dying from AIDS-related complications. That came out about a decade after his death, and I think it changes one's perspective a bit. (And in my case, it's a very different experience reading Asimov on death at 17, when death is mostly an abstract, and getting more information at 25, when one has more life experience.)

Anyway. I blather on in comments.