Laura Gehl is the author of several picture books, including One big Pair of Underwear, illustrated by Tom Lichtenheld. Laura has two children who prefer showers and two children who prefer baths. She and her family live in Chevy Chase, Maryland. Joyce Wan is the author and illustrator of many popular board books, including You Are My Cupcake and We Belong Together. She is also the illustrator of Sandra J. Howett's Sleepyheads. Joyce lives in New Jersey.