The e-book was an e-book with an e-ink screen, similar to a traditional paper book, with reading and writing functions. Color screens and electronic ink screens were common options in e-books. Color e-books usually have bright colors and more detailed font to provide a better visual effect and reading experience. But they are usually more expensive and may not support all e-books. The electronic ink screen e-paper book used an ink screen that did not require batteries. When reading, it only needed water or tea. This type of e-paper book usually had higher reading comfort and lower cost, and could support more format and font. Therefore, the choice of e-book depended on one's personal needs and budget. If you need a better visual effect and reading experience and have enough budget, then a color screen e-book may be a better choice. If one paid more attention to reading comfort and cost, then an e-paper book with an ink screen might be a better choice.