On this week's Book Club podcast I'm joined by Ariane Bankes, whose mother Celia was one of the great beauties of the early twentieth century. Ariane's new book The Quality of Love: Twin Sisters at the Heart of the Century tells the story of the defiantly bohemian lives of Celia and her twin sister Mamaine, whose love affairs and friendships with Arthur Koestler, George Orwell, Albert Camus, Edmund Wilson and Freddie Ayer put them at the centre of the political and intellectual ferment of their age.