The books introduced on Douban can't be read, and there is no specific article content. The book introduced on Douban is for those who have read it. Those who haven't read it can read other people's comments and feel interested in reading this book. You can buy this book on Dangdang and Zhuoyue through the following links.
Extended data:
You can add the books you are interested in to "Want to Read", but it should be noted that this want to read list has no classification function and needs to be labeled manually. After clicking on the content you want to read, you can add classification labels to it according to your learning needs, such as Principles of Economics, Man Kun, Principles of Economics Textbook, Reading Plan and so on.
Function:
Most of the pictures in the book companion can be clicked. For example, click on the cover picture of the book page and start to display the cover in full screen; The book picture on the book review page links to the book page; The reader's picture on the book review page links to the reader's home page.