Mediumism considers what the modernist movement in the arts could mean for us today. It examines how artists and critics, particularly in the visual arts, responded to the growth of industries of distraction since the nineteenth century by creating new kinds of artworks that stress their mediums. Rene V. Arcilla draws out the metaphysical and ethical implications of the work of critics Clement Greenberg, T. J. Clark, and Michael Fried from a perspective rooted in existentialism. He finds in the resulting moral orientation a way to understand the distinctive purpose of liberal education and its political resistance to consumerism. Eschewing terminology that would be familiar to only one set of specialists, the book aims to be accessible to a general audience as well as to readers interested in modernist art, cultural politics, existentialist philosophy, and the philosophical principles of liberal education.