“… when we think of an artistic sketch we often think of a sketch on a sheet of paper which, once the work of art it generated is finished, loses its value. The fact of thinking that the sketch was surpassed by the work of art to which it refers is certainly an error. The work of art must first of all be the representation and expression of the feelings of an artist and the sketch therefore, by its very definition, is the most. high and genuine form of expression of the author’s feelings, the first graphic trait that translates “black on white” the thoughts and emotions of those who produce it…”

(Cesare Catania)