How To Know If A Egg Is Bad Before You Start Cooking Your Breakfast

Recently one of my friends told me that there is distinct difference between 'know of something' and 'know about something' expressions. 'know of' is used when you have personal experience with wha. Possible duplicate of "Know about" vs. "know of". Also What are the differences between “know”, “know about”, and “know of”? on English Language Learners, which is probably a better site for questions. For me, know implies knowledge of details or individual pieces, while am aware of implies a knowledge only of a whole. Using your example, knowing my rights means that I know I have the right to remain. I'm confused in whether to write know or knows in the following statement:- "The ones who are included know better."? Also explain the difference between the two, thanks.