What is the author's tone in the book, I'd Like to Apologize to Every Teacher I Ever Had?

I'd Like to Apologize to Every Teacher I Ever Had, by Tony Danza is written in an informative, detailed and frequently a very passionate manner. The story starts out on an emotional and very personal level. Danza tells the readers that his show was canceled and that he was unemployed and that his marriage was failing. But a spirit of survival comes through his words when he describes his decision to make the unusual move of becoming a teacher for the first time when he is almost sixty-years old.