>>5947594Chapters 3 and 4 are the meat of this book and will prove most valuable for beginners.
Learning measuring tools for proportions and then learning basic methods for mapping out light and shadow patterns.
The stupid advice you will get repeatedly on this site with just about every book you read is "just do the exercises and move on"
People who tell you this have no idea how learning and memory work.
The point is to learn the techniques and memorize them well enough that you can do them without instruction.
So it would be perfectly reasonable to spend a couple weeks on each chapter until you feel the techniques are natural and intuitive enough that you won't forget them.
Another thing to note: once you learn a constructive method like loomis, these measuring techniques will still be used in your regular drawing practice.
The loomis head doesn't exactly replicate every possible combination of features, it's not intended to do so. It is merely a scaffolding on top of which you build more exact measurements, which you gain by using the comparative measurement techniques that KTD taught you.
in short, we don't learn new information so that we can forsake previous information and the goal of reading isn't to complete the book, but instead to learn from the book.