Mac Barnett is the New York Times bestselling author of many picture books, including Telephone and Extra Yarn, which won a Caldecott Honor, the Boston Globe-Horn Book Award, and the E.B. White ReadAloud Award. Mac Barnett has been selected as the ninth U.S. National Ambassador for Young People's L...

Mac Barnett is the New York Times bestselling author of many picture books, including Telephone and Extra Yarn, which won a Caldecott Honor, the Boston Globe-Horn Book Award, and the E.B. White ReadAloud Award. Mac Barnett has been selected as the ninth U.S. National Ambassador for Young People's Literature, appointed by the Library of Congress and Every Child a Reader. He lives in Oakland, California.

Christian Robinson has illustrated many acclaimed picture books, including Last Stop on Market Street, which received a Newbery Medal, Caldecott Honor, and Coretta Scott King Illustrator Honor, and Josephine: The Dazzling Life of Josephine Baker, which received the Coretta Scott King Honor, a Robert F. Sibert Honor, a Bologna Ragazzi Honor Award for nonfiction, and a Boston Globe-Horn Book Honor. He lives in Oakland, California.