Elizabeth Winthrop is the author of books for all ages.

The "Battle for the Castle" was nominated for several state awards, the "The Castle in the Attic," a prequel to "The Battle for the Castle," was nominated for twenty-four state awards and won the Dorothy Canfield Fisher Children's Book Award, the California Young Reader's Medal, and was named a Children's Choice by the International Reading Association.

Betsy Lewin is the Caldecott Honor–winning illustrator of Click, Clack, Moo: Cows That Type and its sequels, including Click, Clack, Quack to School!; Click, Clack, Ho, Ho, Ho; Click, Clack, Peep; Click, Clack, Boo!; Giggle, Giggle, Quack; Duck for President; Dooby Dooby Moo; and Thump, Quack, Moo; in addition to a number of other picture books, including So, What’s It Like to Be a Cat? and Where Is Tippy Toes? She lives in Brooklyn, New York.