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Pre-Suasion: A Revolutionary Way to Influence and Persuade by Robert B. Cialdini (Book Summary) | OptimWise
This book tells how to persuade by influencing a person before they decide. It tells not just what to say, but when to say it. It's educational and entertaining. The lessons can be applied to marketing, sales, or any role that requires persuasion. It cites many scientific studies and includes illustrative anecdotes.