Stock Llibres is a second-hand bookstore located in the heartfrom the center of Barcelona, between Plaza Catalunya, Barcelona Cathedral and Via Layetana. You can find everything from pre-owned books to real antiques. They also offer rare and curious books.
Although you will not only find books, they also sell all kinds of antiques. Inside you can find music, movies, toys, postcards, and even collectibles! A good option whether you want to buy second-hand objects or if you want to sell them.