I don't know if I can recommend this, but it was really impactful on me as someone who considers themselves fairly advanced with their financial health, and has finally made me feel safe enough that I'm not missing anything as far as financial safety goes. No more personal finance books necessary after this one.

This is like, advanced level. If you're advanced enough that you read personal finance blogs or listen to personal finance podcasts, this is what you need to scratch that final itch.