Wangfujing Book Building is also available, but I think it is not as comprehensive as Xidan.
Wangfujing Foreign Language Bookstore has good foreign language picture books. Some are great, but a little expensive.
There is a place selling books (similar to a place selling souvenirs and souvenirs) in Beijing Art Museum. There are good pure art books and many foreign ones. I think it's good, but it's also expensive. None of the good books I have read is 300 yuan's. ...
There is a book building in Haidian District, which seems to be called a small coal factory.