The document is a competitor analysis report from NCR that examines the market share and email marketing strategies of the top 4 office supply retailers - OfficeDepot, Staples, Quill, and OfficeMax. It finds that OfficeDepot has the largest market share at 44% followed by Staples at 27%. It also analyzes the frequency and promotional offers in emails sent by each brand over a 6 week period, finding that OfficeDepot sent the most emails and all brands focused on discounts, coupons, and sales to drive customer purchases. The report recommends that to remain active customers, brands should place orders above a certain amount on all the retailers.