Walter Arnold Kaufmann was a German-American philosopher, translator, and poet. A prolific author, he wrote extensively on a broad range of subjects, such as authenticity and death, moral philosophy and existentialism, theism and atheism, Christianity and Judaism, as well as philosophy and literature. He served more than 30 years as a professor at Princeton University.

Authenticity is a concept of personality in the fields of psychology, existential psychotherapy, existentialist philosophy, and aesthetics. In existentialism, authenticity is the degree to which a person's actions are congruent with their values and desires, despite external pressures to social conformity. The conscious self comes to terms with the condition of Geworfenheit, of having been thrown into an absurd world not of their own making, thereby encountering external forces and influences different from and other than the Self. A person’s lack of authenticity is considered bad faith in dealing with other people and with one's self; thus, authenticity is in the instruction of the Oracle of Delphi: “Know thyself.” Concerning authenticity in art, the philosophers Jean Paul Sartre and Theodor Adorno held opposing views and opinions about jazz, a genre of American music; Sartre said that jazz is authentic and Adorno said that jazz is inauthentic. Many musical subcultures require artistic authenticity, lest the community consider an artist to be a poseur for lacking authenticity ; artistic authenticity is integral to many genres of music, including but not limited to genres of rock, club music, and hip-hop.