There are many books, which are divided into 1 and 2 layers. You'd better read on the second floor. There are prepared mats. After choosing a book, you can sit far away from the book shopping area and read it (which will delay people's business).
Sanmao Academy is not complete in variety, but it is very quiet (the waiters there are not very good)
The above three are all near Huandao Street.