Rules of productivity (mostly links)
Rules of productivity—summarizes research showing that overtime is destructive (except possibly in short bursts with time allowed for recovery), small undistracted teams do best, etc. Perhaps the most interesting detail for rationality is the idea that tired people can’t judge how much their work has deteriorated.
Slack: Getting Past Burnout, Busywork, and the Myth of Total Efficiency. The title pretty much covers it. A review which covers many points, but doesn’t include the book’s emphasis on rational deadlines.
Do these two links cover the same material? If not, how much is the second link based on evidence?
No, the second link is a book with little redundancy, so there’s much more in it. Unfortunately, it’s been a while since I’ve read it, and I don’t know how much research it’s based on.