This store is a unique gem in Madrid's literary scene. It's a women-owned and LGBTQ+-friendly business that offers a wide variety of used books, allowing customers to set their own prices. The store's cozy atmosphere and welcoming staff make it a must-visit for book lovers.The store's concept is fascinating, with customers able to discover new books in surprise packages or set their own prices for the books they choose. The staff is always happy to help and provide recommendations. The store also offers a machine where customers can find books and write messages for others to discover.The store's eclectic collection includes a mix of Spanish and international books, making it a great place to find rare and unique titles. The staff is knowledgeable and enthusiastic, making the shopping experience even more enjoyable.One of the standout features of this store is its commitment to innovation and creativity. The store's concept is truly original, and the staff's enthusiasm and passion for literature are evident in every aspect of the business.However, it's worth noting that the store's small size can make it feel a bit cramped at times. Additionally, some customers have reported issues with the store's heating system, which can make the space feel hot and uncomfortable.Overall, this store is a hidden gem in Madrid's literary scene, and it's definitely worth a visit for book lovers. Despite some minor issues, the store's unique concept, welcoming staff, and diverse collection make it a truly special experience.