1 Book
See allPossibly the lamest of the series. Yes, I get that there has to be a “final book” ... or does there? Recycled search for Worm, and then swapping children when they are teenagers? Makes little sense. I'd skip this.
Eye opening, frankly shocking account of the importance of sleep and how we are not getting enough, to our serious detriment. Important.
Vital, and worth the 1,000+ page slog. The data is excellent. The difference between income disparity and wealth disparity is worth the effort alone.