Olivier Sibony is a professor, writer and keynote speaker specializing in the quality of strategic thinking and the design of decision processes. Olivier teaches Strategy, Decision Making and Problem Solving at HEC Paris. He is also an Associate Fellow of Saïd Business School in Oxford University. Previously, Olivier spent 25 years with McKinsey & Company in France and in the U.S., where he was a Senior Partner. There, he was, at various times, a leader of the Global Strategy Practice and of the Consumer Goods & Retail Sector. Sibony is a graduate of HEC Paris and holds a Ph. D. from Université Paris-Dauphine. He is a knight in the French Order of the Légion d’Honneur. He is married and the father of two children. He lives in Paris.