According to the Provisional Regulations on Value-added Tax in People's Republic of China (PRC) (OrderNo. 1993 of the State Council of the People's Republic of China/February/March13rd):
Article 1 Units and individuals that sell goods or provide processing, repair and replacement services and import goods within the territory of People's Republic of China (PRC) are taxpayers of value-added tax and shall pay value-added tax in accordance with these regulations. Book publishing belongs to selling goods and belongs to VAT taxable goods.
Article 2 VAT rate: (2) Taxpayers sell or import the following goods at the rate of 13%:
3. Books, newspapers and magazines; This article clearly points out that the low tax rate of 13% is applicable to book sales.