We are showing a selection of works on paper by Alighiero Boetti: from the first pencil drawings of 1964 to the colorful watercolors with lettering, realized in series in the ’70s; from the famous pen drawings of the 80s, up to the theme of the “Non vedenti” of the early 90s. “Airplanes” is an emblematic piece, created in 1980 and composed by three sheets applied on canvas where Boetti (or more probably his collaborator Rinaldo Rossi) has been able to weave a dense grid of blue marks; an artificial sky of quick pen strokes pointed by several transparent drawings of multiform aircraft: a memory of the happiness of childhood.