Book excerpt: Bernard Piffaretti on Pierrot, formerly known as Gilles by Jean-Antoine Watteau -- Ana Prvacki on Grotto of Sarrazine near Nans-sous-Sainte-Anne by Gustave Courbet -- Pipilotti Rist on Shiva Nataraja from Tamil Nadu -- Julião Sarmento on Portrait of a young woman by Domenico Ghirlandaio -- Mithu Sen on a red sandstone torso from Harappa -- Stephen Shore on the Studiolo from the Ducal Palace in Gubbio -- Shinique Smith on Canyon by Robert Rauschenberg -- Kishio Suga on Tokyo stone line by Richard Long -- Do Ho Suh on Kumgang Mountain by Jeong Seon -- Diana Thater on Video flag Z by Nam June Paik -- Rikrit Tiravanija on Venus of Bangkok by Montien Boonma -- Luc Tuymans on The Virgin and Child with Canon van der Paele by Jan Van Eyck -- Bill Viola on The Annunciation by Dieric Bouts -- Edmund de Waal on The interior of the Grote Kerk at Haarlem by Pieter Saenredam -- Gillian Wearing on Self-portrait at the age of 63 by Rembrandt --.