[dumb2223]

I think that there more interesting examples to ilustrate the fact that communication require to explain the basic to those that don't work in the field. Any good teacher knows that you have to motivate students and explain things adapting your classes to the knowledge of your students. Also, those who sell services or products know very well how to communicate the value of products. Perhaps some empathy is necessary for communication, but chapter 9 sound voiceless to me.