Jonah Winter and Terry Widener collaborated on one previous picture book, Steel Town. Jonah is also the author of You Never Heard of Sandy Koufax?!, which received three starred reviews; Here Comes the Garbage Barge!, a New York Times Best Illustrated Book; and Dizzy, the recipient of Best Book of the Year citations from Booklist, School Library Journal, Horn Book, The Bulletin, and Kirkus Reviews. His other picture book biographies include Roberto Clemente- Pride of the Pittsburgh Pirates, Diego, and Frida, a Parents' Choice Gold Medal winner. Terry Widener's acclaimed picture books include Lou Gerhrig, The Luckiest Man, a Boston Globe-Horn Book Honor Book, ALA-ALSC Notable Children's Book, and IRA Teachers' Choice; and America's Champion Swimmer- Gertrude Ederle, an ALA-ALSC Notable Children's Book, Child Magazine Best Book of the Year, and School Library Journal Best Book of the Year.