Remember to treat each chapter of a text book as a book in itself when attempting to activate it.
Also books like that where it could take to 12 hours just to learn one chapter by regular means you need to expect that you could be spending up to 4 hours on that chapter when you use the photoreading method. The more you want out of the book the more time you need to expect to spend with it. However using the photoreading system will help you get through it faster than by regular means.
If you experienced a lack of time to learn the material by regular means because it took so much time for you to grasp, you might be gratified about finally being able to learn the stuff on time. The more you want to get out of the book the more activation layers you'll need to apply.
Good luck
Alex
