Tim Caulfield discusses his most recent book Is Gwyneth Paltrow Wrong About Everything? where he examines the magical 'cures' that 'detoxify' our bodies. Terry Tempest Williams looks at the history of our National Parks in her latest book The Hour of Land: A Personal Topography of America's National Parks. Norwegian essayist, poet and fiction writer Gunnhild Øyehaug on her new collection of short stories, Knots, which weaves together a mix of sensuous, surreal and comical tales. The Atlantic correspondent Mark Bowden examines president Trump's options for dealing with North Korea is his latest piece for the magazine.