Chapter 5 is the Compass of Rules:
its basically list of mechanics and a way to put them into families and organizing them from hundreds of games old and new, i did a lot of research for this chapter to make sure i included everything from even previous books for game designers and crunched it all into one chapter lol
There are patterns actually, even though the mechanics seem so wildly different from each other as well as offshoots and variants of nearly every mechanic out there, they almost act like parts of a motorcycle and all the gears need to align perfectly in order to operate as a whole. But you get to custom all these parts in countless ways
I also made some charts to facilitate your imagination a bit when gluing them together in innovative ways since every game needs to have some originality in order to stand out and it sometimes difficult for people to configure ways to glue a few mechanic combinations together that have never been together before in a game.