I’m reading the pdf version.
The footer of almost every page has a “discuss” link. It points to Pragmatic Bookshelf: By Developers, For Developers. When clicked it redirects to https://pragprog.com/
It’s confusing. I was expecting the link to lead to a page where I can discuss the book. Instead, I got the the publisher web site.
I guess it should link to this site? https://forum.devtalk.com