Élisabeth de Feydeau, a fragrance specialist, advises luxury brands including Jean Paul Gaultier, Chanel, and Guerlain. She wrote The Story of Perfume: A Lavishly Illustrated Guide and A Scented Palace: The Secret History of Marie Antoinette's Perfumer. Alain Baraton, head gardener of the park at Versailles since 1982, is a best-selling author and host of gardening programs on French radio and television.