Robert Burleigh is a longtime baseball fan and the author of many books for children. His previous collaboration with Mike Wimmer, Flight: The Journey of Charles Lindbergh, received the Orbis Pictus Award for the best nonfiction book of the year. His book Hoops (Silver Whistle, 1997), illustrated by Stephen T. Johnson, was a School Library Journal Best Book of the Year and a Booklist Editors' Choice. Mr. Burleigh lives in Chicago, Illinois. Mike Wimmer is the illustrator of Train Song by Diane Siebert, Bully for You, Teddy Roosevelt by Jean Fritz, All the Places to Love by Patricia Machlachlan, and Flight: The Journey of Charles Lindbergh by Robert Burleigh, which received the Orbis Pictus Award for the best nonfiction book of the year. The Chicago Sun-Times has described his artwork as reminiscent of some of Norman Rockwell's best. Mr. Wimmer lives in Norman, Oklahoma.