As the nation's largest bookseller, Barnes & Noble understood that earning customer loyalty took more than stocking their shelves with the latest books, music and videos. They needed a fresh stack of services that would keep readers coming back for more. Working with Barnes & Noble to understand their customers' needs, Epsilon developed a customer membership program that got readers hooked. The B&N Membership program spans all storefronts – including the Web and even offers a Barnes & Noble credit card, giving shoppers more ways to earn.