Gerald Zaltman is the Joseph C. Wilson Professor Emeritus at Harvard Business School and the author and editor of 20 books, most recently How Customers Think (2003) and Marketing Metaphoria (2008). In 1997 he founded the market research consulting firm Olson Zaltman Associates in partnership with Jerry C. Olson, Professor of Marketing Emeritus, Smeal College of Business at Penn State. Zaltman patented, the Zaltman Metaphor Elicitation Technique, a method used to delve into the unconscious thinking that drives behavior.