How to Make Mastery With Your Notes

I want to ask you a personal knowledge management. Which is what you know, making mastery is all about. I'd be curious to know what some of your processes are when you do things like consume content like books and other content. How do you go about collecting it, organizing it, maybe distilling it into your own thoughts and ideas? And then ultimately do things like write a book, create with those things that we're learning.