There are many ways to read books online. The following are some common methods: 1. Use online readers: For example, Amazon Amazon, Google Play Books, Apple iBooks, etc. These readers can read books in various e-book format online, including MOBi, AKW, EPUB, etc. 2. Use the public library: Many public libraries offer free e-book downloads. You can head to the local library website or app to find books of interest. 3. Use online bookstores: Many online bookstores can buy e-books online, such as Amazon, Taobao, etc. You can also use credit cards to pay. 4. Use mobile applications: Many mobile devices such as the iPhone, Android smart phones, and tablets provide online reading applications such as the iPhone, Google Play Books, iBooks, etc. Regardless of which method was used, it was necessary to ensure that the downloaded book was legally copyrighted and that it was read in compliance with local copyright laws. Also, pay attention to privacy and safety when reading. Use reliable readers or online bookstores and avoid using computers in public libraries.