Book (Practical) First class "way of speaking" all technologies

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Language
There is no need to speak fluently. What is the way of speaking that the person who produces the result wants? Because the way of speaking is devised, the result follows. It introduces "the way of speaking that can be heard by the other person", "the way of speaking that draws empathy", "the way of speaking logically" and "the way of speaking that moves people" which the first class value. It explains how to use it in the field with experience, so it is easy to understand.