E-book readers usually use e-ink screens, which reflect light and are less irritating to the eyes, so they are suitable for long-term reading. Some e-book readers also provide reading mode and night mode to help protect the eyes. If you want to buy an e-book reader, you should consider the following points: 1. Screen resolution: The higher the resolution, the clearer the text and pictures displayed, and the better the reading experience. 2. font size and color: You can adjust the font size and color according to your personal preferences to make reading more comfortable. 3. Reading mode: Some e-book readers provide reading mode and night mode to help protect the eyes. Storage space: The larger the storage space, the more e-books can be stored and can be easily imported and imported. 5. Price: The higher the price, the better the quality of the e-book reader, but the higher the price. You can choose an e-reader that suits your needs and budget.