Produced on the occasion of the exhibition I don’t know if Thomas Edison invented the excuse at Contemporary Art Gallery, Vancouver, 7 May – 13 June, 2004.

“I regret that a previous engagement prevents me from accepting your kind invitation to dinner at your home, on Thursday evening, September seventeenth,” is a sentence taken from a letter written by inventor Thomas Edison. Pieroth’s interest in the life of Edison led to the discovery the inventor often made excuses to avoid attending social functions. Pieroth then wrote to the American Patent Office requesting a patent on behalf of Edison for the invention of the “excuse.”

Produced on the occasion of the biennal The Lulennial, organized by Fabiola Iza and Chris Sharp at Lulu, Mexico City, a 9-square meter independent space in Mexico City, whose economy, “in the sense of doing a lot with a little or sometimes nothing at all,” is one of the founding principles.

With Zarouhie Abdalian, Francis Alÿs, Paola de Anda, Carl Andre, Billy Apple, Darren Bader, Pierre Bal-Blanc, Robert Barry, Graciela Carnevale, Ulises Carrión, Lygia Clark, Isaac Contreras, Marie Cool Fabio Balducci, Tania Pérez Córdova, Eduardo Costa, Christopher D’Arcangelo, Marcel Duchamp, Koji Enokura, Lucio Fontana, Fernanda Gomes, Alberto Greco, Simon Gabriel Greenberg, Matt Hinkley, Hi Red Center, Tehching Hsieh, Douglas Huebler, Stephen Kaltenbach, Yves Klein, Joseph Kosuth, Jirí Kovanda, Sol LeWitt, Lee Lozano, Jenine Marsh, Cildo Meireles, Robert Morris, Roman Ondák, Yoko Ono, Gabriel Orozco, Chantal Peñalosa, Goran Petercol, Kirsten Pieroth, Wilfredo Prieto, Ana Roldán, Lotty Rosenfeld, Karin Sander, Ana Santos, Martín Soto Climent, Mladen Stilinovic, Mierle Laderman Ukeles, Isidoro Valcárcel Medina, Goran Trbuljak, Lawrence Weiner, B. Wurtz, Lin Yilin, La Monte Young.