Please, feel free and happy to color all these monuments. Using pencils and marking pens, or perhaps pastels and brushes, they will thrive with your touches! Just like flowers, or like birds. The book was published in 1973 in the series "Tantibambini" curated by Bruno Munari for Einaudi. We repropose it in January 2005 for the exhibition "Pino Tovaglia. Rule correcting emotion", organised by Massimo Pitis.