SARA O'LEARY is a writer of fiction for both adults and children. Her highly acclaimed picture books include Percy's Museum, illustrated by Carmen Mok; Night Walk, illustrated by Ellie Arscott; A Family Is a Family Is a Family, illustrated by Qin Leng (USBBY Outstanding International Books); and Maud and Grand-Maud, illustrated by Kenard Pak. She has also written This Is Sadie (adapted for the stage for New York City Children's Theater) and the award-winning series of Henry books, all illustrated by Julie Morstad. Sara writes for children's animation and teaches at Concordia University in Montreal.