Susan E. Goodman is the author of many acclaimed nonfiction books for children, including On This Spot: An Expedition Back Through Time, which was a Washington Post Book World Best Book of 2004. Her book The Truth About Poop was named Best of the Best by the Chicago Public Library, and Skyscraper was a Booklist Editors' Choice for 2004 and a Book Links Lasting Connection. Lee Christiansen illustrated Water Hole Waiting by Jane Kurtz and Christopher Kurtz. School Library Journal called the illustrations "breathtaking" while Kirkus Reviews noted the "vivid artwork complements the elegant text, often extending it with additional details." Water Hole Waiting was named a School Library Journal Best Book and a National Science Teachers Association/Children's Book Council Outstanding Science Trade Book. Lee Christiansen lives in Red Lodge, Montana, with his wife and sons.