On this week's Book Club podcast, my guest is Sara Wheeler, who looks back on her travelling life in Glowing Still: A Woman's Life on the Road. She tells me why it's 'a book about tits and toilets', as well as a meditation on the past and future of travel writing and a lament for the books – in one case thanks to having children and the other to the modern fatwa on 'cultural appropriation' – she didn't get to write.