Barnes & Noble is one of the 500 largest companies in the world. It manages 1,350 bookstores (730 city stores and 630 in campus), as well as the largest online bookstore on the internet, it has globally 10 million customers, sells 300 million books per year, and offers a catalogue of 6 million references. The company's goals are to do better than the competition (especially Amazon best) and dominate the eBook market. For this the company aims to thoroughly analyze and control its activities through its various sales channels and develop a personalized approach to customers through more sophisticated segmentation, marketing programs tailored, better coordination of customer experiences across channels with more responsive websites, more optimized