An analysis of gender-inclusive language and imagery in top-ranked board game rulebooks:
How to write a rulebook, section by section:
https://medium.com/@tim.chuon/how-to-write-a-good-board-game-rulebook-5e66cd9f7e40
A thorough but succinct overview of what rulebooks should achieve, and how to write one effectively:
https://www.universityxp.com/blog/2020/10/1/what-makes-a-good-rule-book
Gamers share their favorite elements for improving rulebooks:
https://twitter.com/Boardgame_girl1/status/1305488932734410752
Julio Nazario and Jason Slingerland discuss rules documents (audio):
http://www.buildingthegamepodcast.com/episode-418-julio-explains-the-rules/
When are gameplay examples needed in a rulebook? A BoardGameGeek designers forum discussion:
https://boardgamegeek.com/thread/2403357/examples-board-games-instructions