There's no guest this week as we explore the concept of abstraction in poetry. Writers often make a distinction between abstract and concrete language, and imply that concrete is best, but we look at how the distinction between concrete and abstract is actually much more complex and interesting than we usually think about. We talk about Dame Edith Sitwell, medium & content, Dada, Abstract Art, visual poetry, Emily Dickinson, techonology & physical media, Christian Dotremont.