Werner Reinartz has developed in depth expertise in Customer Relationship Management and Customer Valuation. He is the winner of major awards for his research on measuring Lifetime Value of Customers. He has published in professional journals like Journal of Marketing and Harvard Business Review. He has consulted for major companies across the world, like Spiegel Inc., GTE Pharma Novartis, Comdirect Bank and HomeDepot. Dr Reinartz is Professor of Marketing, INSEAD, Fountainebleau, France.