Leonard Cohen's 'Book of Longing' Leonard Cohen's latest volume of poetry is Book of Longing. His poetry career began 50 years ago with the 1956 publication of Let Us Compare Mythologies. Known for his deep voice and slow phrasing of songs, his latest album is Dear Heather. He also appeared in the 2005 documentary, Leonard Cohen: I'm Your Man, which is now out on DVD. Three of his early albums from the late 1960s are set to be re-released in March 2007. This interview originally aired on May. 22, 2006.