Simone Elkeles (born April 24, 1970), is an American author known for the teen romance Perfect Chemistry trilogy and How To Ruin trilogy. She is a New York Times Bestselling young adult author.Simone has won the 2010 RITA Award for Best Young Adult Romance from the Romance Writers of America for her book Perfect Chemistry. The sequel to Perfect Chemistry, Rules of Attraction, appeared on USA Today Best Sellers List and The New York Times Best Sellers List.