AkumaLuck
NarpyTheCrimeDog
A major misconception about these books is that you focus on things chapter-by-chapter, when really you should read the entire book. Then practice what you've learned, then read it again so more of the information sticks. Focusing on one area alone is going to present both bad habits and loss of information. Read the book with sketches while reading. Draw for several weeks with the knowledge you remember. Read again, incorporating prior knowledge with the new stuff you now remember. Rinse, lather, repeat.
I could give this a try, but it seems to me like I'd have trouble retaining all the information through the book, without any real formal practice on specific parts. My issue with posts like this is the assumption that everyone has the same style of learning. How people retain information and learn is different from person to person, and assuming that everyone has to do it a certain way, I feel, is a misconception on it's own. I'm not saying your method is wrong, but assuming that the only way to do it is by using your method is wrong. I know lots of people that have to take things one at a time or else they get overloaded. I for one, will forget all the information I learned in chapter 1 when I move on to chapter 2 if I only do minimal work while studying chapter 1, which you seem to suggest is the correct way to do things. I agree with the concept of putting it all into practice once finished, but at least for me, this style seems inefficient and incorrect for my style of study.
Realistically, do what works best for you. I'm never going to advocate the 1-1 drawing approach of an atelier, but
"Passively remembering how something looks, and actively remembering how to reconstruct it are two separate processes."
Studying is for you. Whether you do it for fun or in school or whatever. Don't make the mistake of thinking you have to rote adopt someone else's shitty formula (god knows public school ingrains this something awful); if you're not getting something, just do that part until it makes more sense. If you're tired of not getting it, move onto something else and sometimes you'll have a break through. Even if you don't have a break through, you won't be tired of what you're doing. When you're ready to do so, go back to the thing that you were having trouble with.
But some formulas work, on a whole, better than others. I'm not saying Narpy is
wrong, but the truth is I don't see a lot of pros whose studies involve blitzing through reading then trying to draw what they recall without doing studies in between. It's probably a studying tactic that works for the very bright, or is favored by the dull - I know personally I'm not the former so I never really tried it myself.