Which Xinhua bookstore are you talking about? I'll tell you a few. See which one you need.

1. Go straight north from Zijingshan Department Store. Next to Zhengdao Garden is Xinhua Bookstore, and next to it is a big post office.

2. On Renmin Road, there is one in front of Shanghai Shopping Mall: Zhongyuan Bookstore.

3. Opposite Jinboda, Xinhua Bookstore, near Jinboda and Department Store.

Is there a problem?