I'd definitely recommend How to Read a Book if you want to go into deeper reading. I haven't implemented it fully, though I'd really like to (need to buy a copy

I'd definitely recommend How to Read a Book if you want to go into deeper reading. I haven't implemented it fully, though I'd really like to (need to buy a copy of How to Read a Book to be able to do that, so I can keep referencing it), but it's definitely made me do some short summaries of fluff books, which solidifies the concepts I needed to get out of them. It was useful for that, and I'd love to apply it in more depth.