Cecelia Ahern (born 30 September 1981) is an Irish novelist, known for her works like PS, I Love You; Where Rainbows End; and If You Could See Me Now. Born in Dublin, Ahern is now published in nearly fifty countries, and has sold over 25 million copies of her novels worldwide. Two of her books have been adapted as major motion films. The short story collection Roar has been adapted as a series for AppleTV+.