We are fortunate to be surrounded by some of the most talented data miners anywhere, so our first thanks go to our colleagues at Data Miners, Inc. from whom we have learned so much: Will Potts, Dorian Pyle, and Brij Masand. There are also clients with whom we work so closely that we consider them our colleagues as well: Harrison Sohmer and Stuart E. Ward, III are in that category. Our Editor, Bob Elliott, Editorial Assistant, Erica Weinstein, and Development Editor, Emilie Herman, kept us (more or less) on schedule and helped us maintain a consistent style. Lauren McCann, a graduate student at . and intern at Data. | WILEY Data Mining Techniques For Marketing Sales and Customer Relationship Management _Second Edition Michael . Berry Gordon S. Linoff WILEY Wiley Publishing .