Regarding authorship. Is the author's hand direct and physical or mental/conceptual? How does that involvement affect the way viewers value or interpret the work?
Michelangelo - Sistine Chapel 1512
Bernini - Ecstacy of St. Teresa 1647
Piero Manzoni - Artist’s Shit 1961
Rachel Whiteread - House 1993
Ai Weiwei - Sunflower Seeds 2010
David Cerny - Entropa 2009
Takashi Murakami - Flower Matango 2010
Doom - Madvilliany 2004
