It was very convenient and economical to buy books online, but one had to pay attention to whether they were genuine or not. Here are some ways to buy authentic books: 1 Amazon: Amazon is one of the largest online bookstores in the world. You can buy genuine books on its website. 2. Dangdang: Dangdang is also a well-known online bookstore where you can buy genuine books on its website. 3. Jingdong: Jingdong is also a well-known online bookstore where you can buy genuine books on its website. 4. Taobao: There are many genuine book stores on Taobao where you can buy genuine books. 5. Other large e-commerce platforms, such as T-mall, Jingdong, and Suning.com, all have legitimate books for sale. When purchasing a book, it is recommended to carefully check the copyright information of the book to confirm whether the book is genuine. At the same time, they could also consult the legal sales channels of the books to obtain a better purchasing experience and guarantee.