Introduction: The book "Influence" was written by Ed Keller, an American, and is now the CEO of Roper Company. It was published on 20 14. Content: One in ten Americans tells others how to vote, where to eat and what to buy. One tenth of Americans are influenced by American society. Who are they? The most influential Americans-those who tell their neighbors what to buy, which dignitaries to support and where to spend their holidays-are not necessarily the people you think. They are not the richest or most educated people in America. They are not the first people to eat crabs and try the latest things. However, they are the most enthusiastic people about community affairs, and they exert great influence in the community-they are influential people ... Author: Ed Keller, the current CEO of Roper Company, which is engaged in global market research and consulting, and has conducted research on brand strategy, customer loyalty management, corporate reputation management and corporate public relations management for many world-class companies. Keller is a recognized expert in marketing and consumption trends in the United States. He is a director of the Advertising Research Foundation and a member of the Market Research Association. In addition: The book Influence was published by Wanjuan Publishing Company on 20 10 by Robert Siodini. From the perspective of practical skills, this book deeply analyzes the influencing factors such as logic, communication, explanation, leading by example, avoidance and threat, so as to comprehensively improve your ability to influence others and achieve greater success.