This book is well written and is full of positive prospects, it not only ask you to change the view from pessimist to optimisst but also shows you different examples to understand the idea in a better way.
I believe , Idioms are the USP of this book as they are easy to memories and connect with the situation eveeytime you face.
I think, everyone should read thins atleast one time in their life to totally change the prespective of your life.
This is one of the book I have in my collection and I prefer to read whenever I feel low in my life.