Been a while since the last Field Guide page! As usual, the info in these is supplemental to the story. They’ll give a lot of info about the details of the setting that won’t necessarily be discussed by the characters, to give readers a better idea of the world setting, to give more context and meaning to things that occur in the story, and possibly give some observant readers hints about what’s really going on with this or that.

However, there won’t be anything buried in them that will be necessary to know in order to follow the main story, partially so that readers can skip them on their first readthrough if they don’t feel like slowing down their pace to read these, and still be able to follow the story just fine.