For book lovers, a rainy afternoon in Sol Madrid can be the perfect time to visit a bookstore. Madrid is home to numerous bookshops, both large and small, where you can browse through a wide selection of books in different languages. One iconic bookstore is the Cuesta de Moyano, located near Retiro Park, which specializes in second-hand and antique books. Another notable option is Casa del Libro, a well-known chain with multiple branches in the city. Whether you're looking for a new novel, a travel guide, or a rare edition, spending time in a bookstore can be a delightful way to escape the rain and immerse yourself in the world of literature.