Harriett Gilbert invites guests Gillian Burke and Dee Caffari to discuss their favourite books. Gillian picks Braiding Sweetgrass by Robin Wall Kimmerer, which explores the author's relationship with the natural world. Dee's choice is Turn the Ship Around by L David Marquet, which is Marquet's account of how he changed approaches to leadership aboard the USS Santa Fe. Harriett's pick is O Caledonia by Elspeth Barker, a darkly comic story of a perpetually misunderstood 16-year-old in Scotland