Some people say they find poetry impenetrable. Yet readership is increasing: in a 2017 survey, the National Endowment for the Arts found that nearly 12% of adults in the US had read poetry in the last year. So what explains the enduring appeal of poetry as an art form? Are there any limits to who counts as a poet, or what counts as poetry? And what makes a poem good anyway? Josh and Ray wax lyrical with Nobel Prize-winning poet Louise Glück, author of American Originality: Essays on Poetry.