Many artists, philosophers, writers and photographers have dealt with clouds. Among those works is Socrates by Aristophanes, who tries to convince a young man that clouds form shapes of animals in order to play a trick on humans, and who explains that thunders are the powerful flatulencies of the goddesses that get rid of the air when they feel swollen. How many people know that John Ruskin, a famous critic of English art, deal with clouds in his curious critical essay The Storm-Cloud of the Nineteenth Century, which gave rise to a debate that lasted for years? The clouds-indescribable "objects" of the Euclidean geometry, dreams and desires in a continuous occasional and ungovernable expansion, living in a chaotic order and in a perennial and unforeseeable metamorphosis-have grabbed the attention of two photographers with a perfect balance between realism and abstraction.