Maureen Johnson is the #1 New York Times and USA Today bestselling author of several YA novels, including 13 Little Blue Envelopes, Suite Scarlett, The Name of the Star, and Truly Devious. She has also done collaborative works, such as Let It Snow with John Green and Lauren Myracle (now on Netflix), and several works in the Shadowhunter universe with Cassandra Clare. Her work has appeared in publications such as The New York Times, Buzzfeed, and The Guardian, and she has also served as a scriptwriter for EA Games. She has an MFA in Writing from Columbia University and lives in New York City.

Kelly Link is the author of three collections of short stories, Stranger Things Happen, Magic for Beginners, and Pretty Monsters. Her short stories have won three Nebulas, a Hugo, and a World Fantasy Award. She was born in Miami, Florida, and once won a free trip around the world by answering the question "Why do you want to go around the world?" ("Because you can't go through it.") Link and her family live in Northampton, Massachusetts, where she and her husband, Gavin J. Grant, run Small Beer Press, and play ping-pong. In 1996 they started the occasional zine Lady Churchill's Rosebud Wristlet.