Robert Duncan and Denise Levertov: The Poetry of Politics, the Politics of PoetryThis collection of essays, written for this volume and often using unpublished and archival materials, converges around the usually close and intense relationship between Robert Duncan and Denise Levertov, two of the most important and remarkable American poets in the second half of the twentieth century. Their association, played out in their poems and in an extraordinary exchange of letters, was based on a sense of the visionary imagination