Quiet power The Power of Introverts in a World That Can’t Stop Talking is written by susan cain. Susan Horowitz Cain is an American writer and lecturer. Quiet book is very helpful and explain the importance of of being talkative or non talkative. Its also explain the secretes of leadership quality. On amazon these book is for 270 rs which is very affordable for such a useful book. at least one 3rd of the people are introvert. They are the people who like listing to speaking, reading to parting who innovate and create and dislike self promotion, Quiet book consist of 333 pages which is very lengthy. It has changed my life I would recommend you to read these book which is very motivation adn give you idea about being silence and develop leadership quality.