Is there any non-professional book(s) (General knowledge, Life skills, etc.) that you’d recommend for people to read?
I’ll assume that you mean books for non-professionals, which isn’t targeting specific people from a specific background.
I think it’s a personal taste, but The Seven Habits of Highly Effective People and How to Win Friends and Influence People are essential for everyone - from my point of view - to go through and start to apply.
Best of luck.