Read Psalm 12:2-4 carefully.Identify a communication principle contained within this verse

The book Fahrenheit 451 is very easy to write about. This book surprised me because at the beginning of the book Guy is a firefighter who starts fire and at the end of the book he is a completely different person. He now reads and no longer makes fires. You would think that he would continue to based on what he said at the beginning of the book, but he changed completely and no longer is the person he was before.