Where to buy/sell second hand English books?

Hi, I was wondering where to sell and buy second hand books in English, apart from Mollie Used Bookstore in Taipei?

Thanks a lot!

where are you?
in taipei, whose books near shilin station exit 1 buy and sell second hand English books.


But small selection sadly


106, Taipei City, Da’an District, Section 3, Roosevelt Rd, 293號號地下室
I believe this place buys / sells English books. I was there maybe a year ago and they had some cheap used English books in the basement.