Cecelia Ahern is an Irish novelist whose work was first published in 2004. Her debut novel PS I Love You was an international bestseller and was adapted to film starring Hilary Swank. Her second novel, Where Rainbows End, was adapted into Love, Rosie starring Lily Collins. Her books have been published in over thirty-seven languages, and have sold over twenty-five million copies. In addition to her novels, she is also the author of a highly acclaimed collection of stories, Roar, which is now an Apple Original series starring Nicole Kidman on Apple TV+.