LYNDSY SPENCE is a bestselling author and screenwriter. Her books include The Mitford Girls' Guide to Life, The Grit in the Pearl: The Scandalous Life of Margaret, Duchess of Argyll, The Mistress of Mayfair: Men, Money and the Marriage of Doris Delevingne, and Cast a Diva: The Hidden Life of Maria Callas. Her book on Maria Callas is being adapted into a documentary by a double-Oscar nominated production company and she is producing a documentary on the Latin-American icon, Selena.