I read nonfiction often, but not all nonfiction is worth taking notes on. If I read biographies or memoirs I treat them like a fiction novel, I read to enjoy the story, and other than remembering some details, I'm fine if I forget parts.

Over the years I've read a lot of nonfiction to learn. For these books, I would often read or listen to them cover to cover, if I felt they were worth diving in deeper, I'd get a physical copy, take notes, highlight, and do any exercises in the book. I would refer back to them frequently until I feel I'd mastered the skill.

Another category for me is more "motivational" those I often listen to every year or 2 to remind myself why I make the choices I make or to keep me on track.