Harbin Xinhua Bookstore has a floor dedicated to selling vision test pictures, which can be bought on the first floor. There is a special counter on the first floor of Harbin Xinhua Bookstore, where you can buy all kinds of vision test pictures, including those with more than 200 words. You can also find an eye test chart on other floors of the bookstore, but it doesn't have to be more than 200 words.