How to Persuade and Influence PeoplePhilip Hesketh has spent over five years as a business speaker, a profession which taken him as far as a field as Singapore and Australia. Now a full time speaker on 'The Psychology of Persuasion', Philip shares the knowledge and experience he gained during his impressive career as a salesman for Proctor & Gamble, and later as a Business Director and Managing Partner of Advertising Principles, a leading advertising firm, which he grew from a standing