In 2005, Ellena created Un Jardin sur le Nil for Hermès. The story behind the creation of this fragrance was the subject of the book "The Perfect Scent: A Year in the Perfume Industry in Paris and New York" by Chandler Burr. In addition, the story in a limited form and accounts of other scents as well as his autobiography has been published in "Perfume: The Alchemy of Scent". He is also a writer of "The Diary of a Nose: A Year in the Life of a Parfumeur."