Depends if it is math-heavy or not. If I have to guess, yours is not.

I just read it, and integrate the info that is new to what I know already. I do think that this may not be the best approach for everyone. Especially if more than 50% of all the things you read are new. To me, it is about painting the bigger picture and what details are important vs which ones aren't.

I see people highlight stuff with 5 different colours. I see people taking notes, and making summaries. That doesn't seem to work for me. My approach is odd, but successful, somehow.