With the development of electronic technology, books no longer just appear in paper form, and the appearance of e-books has brought a technological revolution to books. In the past, all printed matter with a front cover and a back cover was called a book. A phone book without logic is also included in the scope of the book. Nowadays, with the decline of paper books, the shell of books in the traditional sense is gradually disappearing, and what remains is more the concept of books-words organized around specific themes. Nowadays, people often spend hours online, reading all kinds of excellent novels and reports with relish and thinking about problems. The unique attraction of online reading is to organize loose information in an orderly way, so that we can browse the fragments at will and get ideas. Books on the internet are called e-books The direct result of making books by digital means is that books can be displayed on any screen at any time and can be "on call", so people no longer need to buy books in advance to read them. Books are no longer physical existence, but data streams that can be presented at any time. Undeniably, the key to the future development of books lies in e-books. Whether it is a rising new reader or a new experience of electronic reading, when lamenting that a generation of "new books" have been replaced by old books, people can't help but wonder what books will become. Ubiquitous book experts once asserted that no one wants to read in front of a luminous screen that is only a few inches big, but it turns out that they are wrong. Modern people's reading devices are getting smaller and smaller, such as notebook computers, tablet computers, handheld readers, mobile phones, and even a reader called "quick sequence visual presentation"-the screen is only one word wide. With the increase of different types of e-readers, people no longer have many books, but have various readers. When downloading e-books, you may see such a recommendation: "This book is most suitable for reading with the No.3 tablet reader." When browsing art magazines, people are likely to be recommended to use a large reader on the coffee table. Just as China invented paper and influenced the world, the appearance of reflective electronic ink screen is subverting the old publishing industry. This invention, called electronic paper display technology, is like covering a white paper that can reflect ambient light with a layer of changeable dark text, which is as clear and readable as traditional black and white text. At present, the electronic ink screen is mainly used for flat-panel readers, which looks like a thick plate with a page on it. You can "turn the page" by clicking on this thick plate. The contents of the previous page are hidden and replaced by the contents of the next page. Its biggest feature is that it can adjust the font size according to personal preference. But in the future, when electronic ink paper can be made in a cheap way, we can bind about 100 pages of such paper into a book. Because the electronic paper book looks like ordinary paper, there will be a spine, and then the book will be wrapped in a beautiful cover, and the e-book is no different from the traditional book. Modern technology also has solutions for people who like reading newspapers or browsing more content on the same page. The Media Lab of MIT is experimenting with a new way of reading. The contents of books are projected onto a nearby plane by a portable laser, and anything at hand can be used as a screen. By then, wallets, desks and boyfriends' backs can all be carriers, and books may really be everywhere. Books that have changed because of you appear in people's lives in a brand-new way, which is followed by a brand-new reading experience. The camera on the flat-panel reader will read the reader's inner emotions through the changes of the reader's facial expressions like "small eyes". This means that the content of the book may change according to the reader's feelings. If you show impatience on your face, the content of the book will be shortened and simplified automatically. If you look confused, the content will be expanded or something easy to understand will be changed. In short, the book will change hundreds of contents according to your needs, and all you have to do may be to frown or pout. At present, there are many similar experiments, and the multi-ending novel is the most anticipated one. Readers give different characters and story outlines according to their progress. The same book has different endings and story lines, which makes people really realize the highest level of book-to-book integration when reading. Books with dynamic images are also the development trend of books in the future. For books with static pictures, people have many names: picture book, tea table book and picture book, but there is no word to describe dynamic books. In e-books with more advanced technology, there is no static picture, and people can't treat books with dynamic images as movies in general. Maybe we can call it a book to read or a TV program to read. On the screen, people try to combine text and dynamic images, so that the picture is next to the text and the text is in the image. In fact, both The New York Times and Washington post have made similar attempts to combine dynamic images with words by making some interactive charts. Although the current technology can not achieve the complete mixing of images and books, it does not hinder people's imagination of the future of books. In an ideal state, people can control dynamic images as easily as they control words now, and they can add comments, make summaries, cut, paste, quote and hyperlink at will. If all these can be realized, people can make a set of books with rich visual content, which is undoubtedly good news for training educational books, and entertaining will be realized first in the book reform. When reading paper books, people can take notes, mark them, outline the main points and fold the corners, but in e-books, all this is gradually realized and there will be more surprises. Nowadays, e-books allow people to mark the fragments they want to remember while reading, and export these fragments to read repeatedly when necessary.