Anselm Kiefer is a German painter and sculptor. & Nbsp; Since 1969, Kiefer created his own personal revision of the Hitler period, with pictures-photographs in which he himself played a Nazi with his arm raised. In the eighties, Kiefer instead arrives at the monument, the colossal work that comes out of the walls, from the schemes, which invades the spaces and occupies them as a monstrous metaphor of shame, or sense of guilt, or pain.