For the book, here is the link: https://digitalinfrastructures.nl.
PDF: How to bluff your way into Zero Trust
PDF: Using deployment diagrams to explain architecture and security to everybody.
The presentations are also online in the WHY2025 YouTube channel and at the CCC.
More on deployment diagrams in the book, in which you can search.
Find me on LinkedIN or Mastodon @petersgriddle@fosstodon.org.