Agree with @mmmmAccounting. CFA institute gives all you need and then some in terms of material. Not to mention they are the ones who makes the exams, so it would be a no brainier to use their materials straight from the source.
“Hello fellow CFA charterholder ! What prompted you to do CPA after CFA?”
CPA is required or strongly preferred for so many jobs – Controller, Finance Director, CFO, etc. Given my career path it seemed wise. And no, I never plan to leave industry and go into Audit 🙂