Antonio Molinero Cardenal (Soria, 1957) is a professor of "History of photography" and "Modern and contemporary photography" of the Institute of Photographic Studies of Catalonia (Barcelona) and author of the historiographical essay "The oxide of time. photography ", in addition to an extensive bibliography on the most varied photographic themes, being a specialist in the" historical avant-gardes ", the essential theme of these" strange scenes in the silver mine ".