Kate Gardner is the picture book author of Lovely Beasts, Snow Falls, and How to Find a Fox. During her nighttime walks with her dogs, she admires the brightly lit windows in her neighborhood and imagines the cozy spaces inside. That got her wondering about other types of places to live. . . . While Kate lives in a house outside of Boston, she thinks that a nest is probably best.

Heidi Smith is a freelance character designer and visual development artist who graduated from the character animation program at the California Institute of the Arts. She was the character designer and conceptual designer for ParaNorman, and she won an Annie Award for her designs in 2013. She has also worked as a character designer for Henry Selick at Cinderbiter, the Jim Henson Company, and Warner Brothers. Heidi lives in Arizona.