If you want to start applying the PhotoReading skills on your textbooks in September get cracking in learning to Photoread now. Best is if you have photoread and activated a couple of other books before you hit the textbooks. Once you understand how to photoread it becomes easier to apply to textbooks.
There's a lot of information on the forum that can help you learn the process from the book. Tapes are useful for discipline and repeating sections as well as learning to get into the accelerated learning state faster. On the whole the book provides all you need to know to learn to photoread.
Alex