Any HN reader who has not read Gall's book Systemantics (whose latest printing is under the title The Systems Bible: https://www.amazon.com/Systems-Bible-Beginners-Guide-Large/d...) really ought to rectify that. It's not perfect, but it will give you lots of things to think about, and Gall's witty writing style makes it a fun, easy read.
(I pulled my copy out just a few weeks ago so I could quote a different Gallism that was relevant to an HN discussion: https://news.ycombinator.com/item?id=18859680)