In this Thursday, May 25, 2017, photo, a salesperson helps a customer use his smartphone to make a payment at the Amazon Books store in the Time Warner Center at Columbus Circle, in New York. Amazon opened the retail store Thursday. Amazon, the e-commerce giant that changed how people shop for books, toilet paper and TVs, hit a new milestone Tuesday, May 30: Its stock topped $1,000 for the first time. (AP Photo/Mary Altaffer)