As far as the books we call pBook are concerned, eBook may not be perfect, but it also has very distinct advantages, such as: for the whole industry, there is no inventory and environmental protection problems. As we all know, the paper industry is an important industry that wastes resources and causes pollution. For our publishing house, the cost in the process of printing and distribution will be greatly reduced, and at the same time, the limit of print run will be completely broken, because many books with academic value and cultural accumulation value have a small print run. In the traditional distribution, publishing such books will be uneconomical, which will no longer be a problem of e-books; For our readers, it is convenient to view and retrieve, add or delete comments at will, and there is no difficulty in carrying them. More personalized printing on demand will make us enjoy reading more as readers in the digital age. Of course, we must realize that there are many difficulties to be solved from pBook to eBook, such as strong technical support from hardware (reading tools) and software (reading software), crossing the deep-rooted traditional reading habits of human beings, and a series of headaches, such as copyright protection and online payment. But online publishing will definitely be a development direction of the publishing industry. Perhaps it is unrealistic to talk about e-books completely replacing pBook.