It's true. Wechat is a marketing method, which attracts users to forward books to their circle of friends by sending them for free, and adds WeChat to get the books they want. But in fact, when users add WeChat, they will be told that the book is given to them for free, but the freight needs to be paid by themselves. Freight per set of books 15 yuan. This marketing method is mainly to earn postage difference and buy books, so WeChat book collection and postage payment are true.