Rachael Allen is a scientist by day and writer by night. She is the winner of the 2019 Georgia Young Adult Author of the Year award, and her books include 17 First Kisses, The Revenge Playbook, The Summer of Impossibilities, and A Taxonomy of Love, which was a Junior Library Guild selection and a 2018 Book All Young Georgians Should Read. Her next novel, Harley Quinn: Reckoning, will be out in 2022. Rachael lives in Atlanta, Georgia, with her husband, two children, and two dire wolves.