Computer books like textbooks it's best to treat each chapter like it is a book in itself.

PhotoRead the whole book and then do a 30 minute activation of the whole book. It gives you a better idea of the books layout and the topics it covers you won't learn much from that activation. But will become more familar with the book.

When activating a chapter PhotoRead it again, include two chapters before and two chapters after the selected chapter. Then activate with the usual mind probing questions, the first activation may include the trigger words for this chapter. Build your knowledge in layers. Don't make the mistake of trying to get it all in one sitting.

If you fully activate a book until it gels you will have the same or better understanding of that book that you normally get from elementary readking skills. And you get it in 1/3rd or even 1/5th or 1/10th the time.

Mind map and you use more of your own mind to create a lasting memory. Review the mind map frequently. First week you should look at it daily and notice anything that you've forgotten you can quickly refresh your memory. Then review weekly for about 4 weeks then move to reviewing monthly. Make sure you review all your mind maps starting two weeks prior to an exam. You'll find you are much better prepared because of the reviewing and it takes less than 3 minutes to review a mind map.

Alex