New York Times and USA Today bestselling author Cassia Leo grew up in Southern California and now lives in Portland, Oregon with her daughter (who doubles as her publishing partner). She loves to travel and her dream is to one day score a record deal based on her awesome shower singing skills. She is the author of the New York Times bestselling Shattered Hearts series and Black Box, and the USA Today bestselling series The Story of Us, Luke, Knox, and Unmasked.

In the years since Leo published her first novel in 2011, she’s published more than forty titles, with more than a dozen national bestsellers. She’s been traditionally published in dozens of countries, had her work translated into multiple languages, and is self-published all over the world. Her writing influences are Ted Chiang, Jodi Picoult, Gillian Flynn, George Orwell, Lauren Oliver, and Markus Zusak.