Tomi Ungerer, Untitled (We want mothers), 1977‐1979 (drawing for Babylon, first published 1979 at Diogenes Verlag AG, Zürich), Black grease pencil on paper, 15 7/10 x 11 4/5 inches (40 x 30 cm). Collection Musée Tomi Ungerer – Centre international de l’Illustration, Strasbourg. © Tomi Ungerer/ Diogenes Verlag AG Zürich. Musées de la Ville de Strasbourg / Mathieu Bertola