The second-hand book fair that takes place in Mercat de Sant Antoni every Sunday attracts all sorts of people. You'll see families that have just come to browse amongst the books, posters and postcards as well as adolescents looking for a specific software programme and intellectuals searching for obscure reference material. It is a meeting point for different worlds, a place to dream and enjoy. Come early, because by midday there are so many people you will not get close to the stalls. Admission is free.