Paper books had the following advantages over online books: Touch and smell: Paper books have a unique touch and smell that allows readers to better immerse themselves in the book. 2. Visualization effect: Paper books can better display words and pictures, making it easier for readers to understand and remember. 3. Reading experience: Reading a paper book requires hands-on operations such as flipping pages, which allows readers to better experience the joy of reading. 4. Collection value: Some paper books can have collection value, such as classic novels, which can be left to future generations as precious legacies. Of course, there were many ways to read online, such as e-books and tablets. These methods also had their advantages, such as convenience, cheapness, and being able to read anytime, anywhere. Therefore, he could choose the reading method that suited him according to his own needs and preferences.