Ingrid Law is the acclaimed author of three novels for young readers, including New York Times Bestseller and Newbery Honor Winner Savvy. Her books have appeared on more than thirty state reading lists and have been translated into twenty languages. When she isn't writing, Ingrid works as a bookseller in Denver, Colorado, and can often be found with her pup.

Xin Li is an illustrator and writer. She was born and raised in China and currently lives in Norway with her husband and their daughter. She is the creator of the acclaimed I Lived Inside a Whale and illustrator of Stephen Hawking's You and the Universe.