Steve J MartinSteve Martin is faculty director of behavioral science at Columbia Business School and co-author of several international bestsellers, including Yes! 50 Secrets from the Science of Persuasion--a New York Times, Wall Street Jounal, and Business Week bestseller published by Free Press--and Messengers: Who We Listen To, Who We Don't, and Why (PublicAffairs). He is also chair of the Global Association of Applied Behavioural Scientists. Read More Read Less