I have read many these kind of books, and I have found none of them to be helpful. They are just mangling delicious-sounding sentences.
I have found that the most effective way to think is to write your own book, your own expedition of the matter at hand. When you write a sentence/paragraph, you notice how poor/ugly/erroneous your writing is, and then you rewrite it. I love being noticing how wrong I am, because at that point I have learned something. This way, you have iterated and learned the matter, and learnings are not just in your brain with you all the time, but you also have externalized it in writing, and the passing of time shows if it is timeless bulletproof understanding/thinking/learning/whatever.
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