What Should I Learn From a PM Course?

If you want to learn how to build products and you are non technical, I think that reading the book could be a good guy. You can't really absolutely everything by reading a book. The course is kind of like the way you can prove that you can build a product. And anyway, it also depends on how much how serious you are about taking the next step. So I would say you are just thinking about it then thinking about breaking into product or becoming a better product manager. Next step obviously to take some action.