Hi David,
Paul Scheele recommends that you Prepare/Preview and PhotoRead the entire book, even if you will only be manually activating a portion of the chapters within.
If there is a piece of data or information within the "outside" chapters that you are not planning to build layers of comprehension very, very quickly at a conscious level, you will still automatically draw upon that knowledge while you are activating the chapters which appear to be the most relevant to your purpose.
If time is very limited for spending on that book, go ahead and skip those chapters that you know in advance you are not going to activate in step 5, and PhotoRead everything else.
Dana
