The defining decade is a book by Meg Jay, who is PhD in some USA university, I don’t know what is particular university. The book is dedicating to struggle times between 20 and 30 years of different people. In general sense this book is alright and wrote in convenient and understandable language. Therefore, everyone can read it and understand. The vocabulary of content is not psychological and friendly for everyone.
The content of a book is structured like several pieces – the stories of each person who had some struggles in life. When you read this book you feel yourself like a doctor, because all conversation which wrote in the book occur in the practical office of Meg Jay. Certainly, the book is worthy to read it in a few days.

And the main question of this article – the psychology is not a science. Everyone have to remember about it and during your reading don’t be so sensitive about what says in the book. We don’t have any scientific facts about research of the author. Just remind yourself when you read this book. Indeed, the book will be helpful for people who are lost yourself in ages from 20 to 30 years. The main sense of a book – we have a solution from any life’s situation!