You should buy the book
"There are authors and actors who only show up when they have something to sell, who hit the road to briefly entertain us, pitch us and then leave. If you love their work, then by all means, buy it! But the frequent blogger is here for another reason."
"The challenge of communication isn't to never miscommunicate, it's to cut down the time between the interaction and the realization that the communication didn't get through."