In terms of efficiency and reading effect, is it better to read a paper book or an e-book?

Paper books and e-books had their own advantages and disadvantages, depending on personal preferences and needs. The advantages of paper books included: Touch and smell: Paper books have a unique touch and smell that can give readers a more realistic reading experience. Reading experience: The reading experience of paper books is better because they have higher contrast and better legibility. 3. Cost of maintenance: Paper books don't require much maintenance because they don't require too many electronic components. The advantages of e-books included: 1. Portability: E-books can be easily carried around, whether it is traveling or other environments. Energy Saving: E-books don't need to consume too much energy because they use batteries to store content. 3. Price concessions: E-books are usually cheaper than paper books. Paper books and e-books had their own advantages and disadvantages. The choice of books mainly depended on personal preferences and needs. For professional textbooks, paper books and e-books could provide a good reading experience. Some people prefer to look for information in paper books while others prefer to browse through e-books. The final choice of books depended on one's habits and needs.