The electronic version of the first volume of sixth grade mathematics published by People's Education Press was released in May 20 13. E-book textbooks involve copyright issues, and the publication of a book needs to be negotiated with copyright parties (publishers, authors or other copyright holders); In addition to commercial interests, copyright owners may have more considerations, such as electronic piracy. In addition to negotiation, the electronic process itself has costs, including the production, proofreading and annotation of e-books. E-book is a kind of "paperless book", which has no paper medium of traditional books. The information of traditional books exists in the form of atoms, while the information of e-books exists in the form of numbers.

The process of traditional books from production to consumption is "author-publisher-publisher-reader". E-books can greatly simplify this process and become a "direct selling" model of "author-reader" After the author's work is completed, it becomes an e-book through simple operation, and then the e-book can be presented to the reader in an instant with a click of the mouse. Internet is the highway of e-book communication. E-books can not only display the words and pictures in paper books, but also keep the original paper books. At the same time, it can be accompanied by multimedia content such as audio and video, and its forms of expression are richer than traditional books. This is beyond words.