There are several Hong Kong editions of books in Sanlian Bookstore on the 3rd floor of the Book Shopping Center, and some Hong Kong editions can be bought in Bede Bookstore on the 5th floor and the bookstore opposite Little Sheep on Tianshou Road. There are some old Hong Kong editions in Wenjinge next to Xueyou in Xingang West Road.

I suggest going to Wen Yi Bookstore in the downtown area of Shenzhen Bookstore, where there are more Taiwan Province books.