  Adorno left Germany in the spring of 1934. During the Nazi era he resided in Oxford, New York City, and southern California. There he wrote several books for which he later became famous, including Dialectic of Enlightenment (with Max Horkheimer), Philosophy of New Music, The Authoritarian Personality (a collaborative project), and Minima Moralia. From these years come his provocative critiques of mass culture and the culture industry. Returning to Frankfurt in 1949 to take up a position in the philosophy department, Adorno quickly established himself as a leading German intellectual and a central figure in the Institute of Social Research. Founded as a free-standing center for Marxist scholarship in 1923, the Institute had been led by Max Horkheimer since 1930. It provided the hub to what has come to be known as the Frankfurt School. Adorno became the Institute's director in 1958. From the 1950s stem In Search of Wagner, Adorno's ideology-critique of the Nazi's favorite composer; Prisms, a collection of social and cultural studies; Against Epistemology, an antifoundationalist critique of Husserlian phenomenology; and the first volume of Notes to Literature, a collection of essays in literary criticism. 