200 1, related e-book reader products have been launched, but the sales scope has not been large, mainly for corporate customers. In June 2007, Amazon, the world's largest online bookstore, launched the Kindle. Within 5.5 hours, the Kindle with 6-inch screen was sold out. In 2008, the Kindle2 launched by Amazon set off a global e-book reading craze. In 2009, the second generation product Kindle2 sold nearly 300,000 units in two months. At the same time, from April to June 2009, e-book sales in the United States tripled compared with the same period in 2008. The popularity of Kindle triggered Sony, Hanwang, Samsung and other domestic and foreign manufacturers to follow up quickly, and laid out the e-reading market one after another, and the cooperation between manufacturers and major publishing groups also began. From the domestic market, in addition to Hanwang e-books occupying the first place in the domestic e-book market, Lenovo, Founder, Huaqi, China Mobile, Datang Telecom and other telecom companies also use 3G opportunities to enter the e-book market. In the global e-book market, Amazon ranks first, followed by Sony, and Hanwang Technology, a leading e-book company in China, ranks third. In China, Hanwang has occupied the core position in this field.