Laura Geringer is the author of many highly acclaimed books for children and young adults, including the celebrated A Three Hat Day illustrated by Arnold Lobel; Myth Men, a popular series of graphic novels based on the classic Greek myths; and Sign of the Qin, Book l of the Outlaws of Moonshadow Marsh series, an ALA Best Book for Young Adults; and Boom, Boom Go Away illustrated by Bagram Ibatoulline. She serves on the National Advisory Board of First Book, a charity that has distributed over seventy million books to children in need. Laura lives in New York City.

Bagram Ibatoulline was born in Russia and educated at the Moscow State Academic Art Institute. His first book was Philip Booth's Crossing, named a 2001 Best Book by Publishers Weekly. He is best known for his books with Kate di Camillo, The Miraculous Journey of Edward Tulane, and Great Joy. Bagram lives in Gouldsboro, Pennsylvania.