Kiera Cass is an American writer of young adult fiction born in Myrtle Beach, South Carolina. She is best known for The Selection series, which achieved significant success and became the foundation of her writing career. Following the success of the first Selection book, Cass expanded the series considerably. She wrote a trilogy from the main character's perspective, followed by two sequel books centered on the original protagonist's daughter, along with several novellas set within The Selection world. Beyond The Selection universe, Cass has pursued other writing projects. She rewrote and republished her 2008 online novel The Siren in 2016. More recently, she released a duology consisting of The Betrothed and The Betrayed, and in 2022 published a standalone novel titled A Thousand Heartbeats.