Johanna Hurwitz is the award-winning author of many books for children, including The Two and Only Kelly Twins and four books about Arlene and Ilene’s friend Monty.

Johanna Hurwitz divides her time between Great Neck, New York, and Wilmington, Vermont.

Brian Floca is the author-illustrator of the Caldecott Medal winner Locomotive, the Robert F. Sibert Honor books Moonshot and Lightship, and other picture books, and is the illustrator of many more books for young readers. Brian Floca lives and works in Brooklyn.