Why not go old school and read a book: "Godel, Escher, Bach: An Eternal Golden Braid" by D Hofstadter" It's a classic (in my view). It is ideal for non expert

Why not go old school and read a book: "Godel, Escher, Bach: An Eternal Golden Braid" by D Hofstadter" It's a classic (in my view). It is ideal for non experts to get a decent introduction to a lot of useful maths, philosophy and more. It covers Cantor and infinities n that and puts them into context too. I describe it as a very easy read given the subject matter.