Introduction: replicants and Cartesians -- The commodity, the readymade and the value-form -- Modernism, repetition and the readymade -- Deskilling, reskilling and artistic labour -- The post-Cartesian artist -- Surrogates, prosthetes and amateurs -- Situational authorship, diffuse aesthetics and network theory -- Art, immaterial labour and the critique of value -- Afterword: reproducibility and the hand.