The contingent object of contemporary art

In this book Martha Buskirk addresses the interesting fact that since the early 1960s, almost anything can be and has been called art. Among other practices, contemporary artists have employed mass-produced elements, impermanent materials, and appropriated imagery, have incorporated performance and video, and have created works through instructions carried out by others. Furthermore, works of art that lack traditional signs of authenticity or permanence have been embraced by institutions long devoted to the original and the permanent.