Abby is awesome and an old friend from NYC ux & information architecture scene in early 2010s.
Her book is great, and like others mention, the homepage is just the TOC. Go buy it!
Ultimately, the mess is yours to make it helpful for stakeholders.
Could you post the names of some influential books or articles from the Information Architecture scene?
I've never heard of it, but I'm impressed by OP's website and I'm interested in learning more.
edit: There's a whole list in the website.
edit (pt. 2): How would you compare the Information Architecture scene to the Effective Altruism scene? Are these scenes linked/overlapping in any particular way?