The issue is that we don't use our mind. The author had asked a librarian in his college days that he wanted books on how to use mind. He was disappointed that he was referred to the medical section.The conclusion is that if you use mind mapping techniques, you will be able to use your mind effectively. Mind mapping is recommended as opposed to linear notes taking. The author supports his finding with detailed mind maps examples.The book if filled with create pictures and slides.The theory is good but implementating what we learn is difficult. Since you will require to refer to it a great deal, it is good to buy it.Since no practise tools are provided, it doesn't get 5 star rating.