The Defining Decade

The Defining Decade Book PDF download: CLICK HERE or The Defining Decade Book read online CLICK HERE. “Dr. In the book, Meg Jay ‘The Defining Decade,’ the author manages to change the perception that people hold about the twenties. In this decade, according to Jay, people do not act as adolescents but transform out of them and therefore is not a period to be called a long adolescence.