Cecelia Ahern is an Irish novelist, renowned for her works such as PS, I Love You, Where Rainbows End, and If You Could See Me Now. Born in Dublin, Ahern's novels are published in nearly fifty countries, with over 25 million copies sold worldwide. Her literary contributions include several novels and short stories.

Two of her books have been adapted into major motion films, and her short story collection Roar has been adapted into a series for Apple TV+. Ahern is also the creative mind behind the ABC comedy Samantha Who?, starring Christina Applegate. She has received numerous accolades, including the Irish Book Award for Popular Fiction for The Year I Met You.