Renato Troncon, Giorgio Zanchetti and Alessandro Castiglioni present the new artist book “Two paper drops before the sky” and the video installation “The Sky” by Giovanni Ferrario at MART in Rovereto. The artist has scanned, re-edited and modified the pages of Slavonic-Bulgarian History, a book by Paisij Hilendarski. As a result the images are no longer recoognizable and fail to reveal their source.