Librería de Segunda Mano is a popular used bookstore in Sol Madrid. With its affordable prices and constantly changing inventory, it's a favorite among budget-conscious book lovers. The store offers a wide range of genres, including fiction, non-fiction, and children's books. Librería de Segunda Mano also buys used books, providing an opportunity for readers to declutter their shelves and make some extra cash. Whether you're buying or selling, this bookstore is a great place to find literary treasures.