Home Slickdeals Amazon Coupon: Extra 10% Off New Textbooks When You Spend $100+ (Maximum... Slickdeals Amazon Coupon: Extra 10% Off New Textbooks When You Spend $100+ (Maximum Discount $50) By ARCOM - 17 August 2018 138 0 SHARE Facebook Twitter Go to the deal page: Amazon Coupon: Extra 10% Off New Textbooks When You Spend $100+ (Maximum Discount $50)