This thesis is specifically concerned with the study of authenticity in the arts field, with no disregard to other dimensions that, through the course of this investigation, have helped us elaborate a schematic proposal for what we hereby identify as an authentic or inauthentic way of doing art. The study is comprised of two sections: on the first part we examine the history of authenticity (and inauthenticity), with emphasis on the notion of being authentic, from a nominal, ethical, philosophical and psychological perspective and calling on authors such as Benjamin or Nietzsche; on the second part, we focus the research on the artistic dimension of authenticity, with help from authors such as Kant or Heidegger, with the purpose of elaborat...