The book documents Marco Tirelli’s exhibitions at the Institut Mathildenhöhe in Darmstadt from 17 November 2002 to 2 February 2003, at Galleria Fumagalli in Bergamo from 15 February to 28 March 2003 and at the Galleria d’Arte Moderna in Bologna from 17 April to 15 June 2003. The monograph illustrates the last 15 years of the artist’s work with a large photographic apparatus completed by the texts by Peter Weiermair “Reflections on Marco Tirelli’s works”, by Klaus Wolbert “The geometrical universe of Marco Tirelli” and by Giorgio Verzotti “An aside on (what is missing in) Marco Tirelli”.