What's you're purpose? Focusing on one book at a time after you've PhotoRead them is all that is usually necessary. You use the books in tandem with your course.

If you're PhotoReading the books for the sake of PhotoReading alone. You could do one book or two books a day. PhotoReading the books more isn't better if it causes stress. It's better to leave the books to incubate than think you must PhotoRead them again and again and again in order to get results. Forcing yourself to PhotoRead them is like saying you don't trust your mind to help you on this. Well your mind will live up to your trust.

Let go, be playful in your approach. Your mind is a great asset if you will allow it to be.

Alex