Like his other writings, Dr. Chi also mailed this book out to his mailing audience. The dentist is here again: When he first began writing his letters, Dr. Chi only mailed them to members of the media. later, however, he began to feel that such a course lacked effectiveness, and he changed tactics. He began to send the letters to a broader audience including various administrative bodies.
一開始他的投書都是寄給媒體，後來覺得效果有限，改為更廣泛地向行政機關投書。