1) 18x27cm. "Alighiero and Boetti", 5 May-30 June 1990, Galerie Kaess-Weiss, Bismarkstr. 79, 7000 Stuttgart 1, Telephone: 0711/631074;
2) 21.2x30.6 cm. "Alternating from 1 to 100 and vice versa", Alighiero and Boetti, Verlag der Buchhandlung, Walter Konig, Koln;
3) 24.4x30 cm. "Verba volant scripta manent", Boetti Bochner, Totah;
4) 25.2x29.7 cm. "Alighiero Boetti", in Brown Fine Arts;
5) 21x30.5 cm. "Alighiero and Boetti" studio Giangaleazzo Visconti, 8 March 2006;
6) 20x27 cm. "Alighiero and Boetti" from 6 March to 21 April 1990, Galerie Hadrien-Thomas, Paris;
7) 21.5x 30.6. "Postal Oeuvre 1993", "De Bouche a Oreille", M.P. musee de la poste;
8) 21x30.4. "Alighiero and Boetti, Next to the Pantheon", Prearo Editore;
9) 21.4x30.6 "Alighiero and Boetti, De Bouche a Oreille" Center national d'art contemporain de Grenoble;
10) 21.8x30.6 "Alighiero Boetti, unpublished materials" 2011, collected unpublished materials.