Shelly Becker is the author of Even Superheroes Make Mistakes, Even Superheroes Have Bad Days (a 2018 Blue Spruce Award Nominee that Kirkus Reviews called "an action-packed romp"), and Mine! Mine! Mine!, which has been included on many Top Five and Top Ten lists of books that teach the concept of sharing. Becker lives in Toronto, Canada, far away from her three wonderful grandchildren, who live in New Jersey. When they can't be together in person, they keep in touch by speaking on the phone and sending plenty of pictures and videos.

Eda Kaban has illustrated many popular books for children, including Pirates Don't Go to Kindergarten, Even Superheroes Have Bad Days, and Robb Pearlman's Pink Is For Boys. Born and raised in Turkey, Eda now lives in Oakland, California, with her husband, small son, and two Siamese cats.