Sarah Weeks has written more than fifty books for young readers. Some of her picture books include Mrs. McNosh Hangs Up Her Wash, Sophie Peterman Tells the Truth!, and Glamourpuss. Her bestselling novel, So B. It, is a feature-length film starring Alfre Woodard and Talitha Bateman. Ms. Weeks visits thousands of students in elementary and middle schools across the country every year. She is also an adjunct professor in the prestigious MFA Writing for Children and Young Adults program at the New School. Sarah lives in Nyack, New York, with her husband, Jim Fyfe, and their dog, Mia. You can visit her online at sarahweeks.com.

Nadine Bernard Westcott has illustrated numerous books for children, including How to Grow a Picket Fence by Mary Louise Cuneo and two popular children's songs: There's a Hole in the Bucket and Over the River and Through the Wood. She has also illustrated another book in the Let's-Read-and-Find-Out Science series: I Can Tell by Touching by Carolyn Otto. Ms Westcott lives on Nantucket Island in Massachusetts.