This mint card single fold ZagaBook is a great choice four your product. Also comes in a double fold. What is ZagaBook? We take anyone of our 10 top selling items and we attach them to a two sided promotional card that we call a Zagabook. Each promotional card has four color printing capabilities on both sides which allows for a tremendous amount of print area. ZagaBooks are great to introduce a new products, drive traffic to a website, or offer a special coupon.