Since the emergence of conceptual art in the 1960s, artistic skill and superlative craftsmanship came to be derided as almost artistic embarrassment, a suspect accusation leveled at the supposed old guard who took pride in their technical proficiency. Think of Joseph Beuys and Andy Warhol, their artistic factories where the artist oversaw but did not make, or the word-instruction "poems" of Yoko Ono, performed by others.