I tagged the following tech2watch article, click this link to read it. https://www.okiok.com/zero-trust-architecture-what-it-is-and-what-i-think-of-it/
I have been reading the Zero Trust Architecture (ZTA) publication from the NIST for quite some time now. You can find the document here: https://ift.tt/3gQ7v99. This 41 page document is dense and full of advanced architecture patterns.