Caldanzano can be considered one of the greatest exponents of the art of advertising posters . He moved to Milan in 1910, began working as a graphic designer at the Officine Grafiche Ricordi alongside prestigious poster designers such as Marcello Dudovich and Leopoldo Metlicovitz. At that time he made some Sardinian-inspired covers for the magazine “ Ars et Labor”, Covers for musical scores, posters for plays, etc. He was also one of the first to try his hand at the nascent poster design linked to cinema and, in 1914, he was able to work, in together with Metlicovitz, on the series of posters for the film Cabiria by Giovanni Pastrone.