David S. Duncan
David S. Duncan has written at least 2 books. Their most popular book is The Secret Lives of Customers: A Detective Story About Solving the Mystery of Customer Behavior with 3 saves with an average rating of 4⭐.
David S. Duncan has written at least 2 books. Their most popular book is The Secret Lives of Customers: A Detective Story About Solving the Mystery of Customer Behavior with 3 saves with an average rating of 4⭐.
