It's not right either. At present, there are three main kinds of Google books, one is that all of them can be previewed, the other is that they can only be previewed partially, and the other is that there is no preview. You mean the kind that can only be partially previewed? There is no way to read the whole book. Because Google Books has now enabled a new copyright protection mechanism. That is to say, the number of pages you can browse in the same book in different places and at different times is different. If you want to download Google Books and read them on any device. You can ask me.