I really like the mockups in this post. It's so rare that you see discussion of authentication UI/UX. Speaking of, are there any UI/UX design resources (books,

I really like the mockups in this post. It's so rare that you see discussion of authentication UI/UX. Speaking of, are there any UI/UX design resources (books, tutorials, blog posts, etc.) on for modern authentication flows (2FA, OAuth, etc.)? I've been searching for a while and can't seem to find anything substantial. All the design discussion I can find is around protocols/handshakes/security, but nothing about UI/UX best practices and possibilities.