Lola M. Schaefer is the author of several books for children, including An Island Grows; Pick, Pull, Snap! Where Once a Flower Bloomed, an NCTE Notable Children's Book in the Language Arts; and What's Up, What's Down? She lives with her husband, Ted, in the mountains of north Georgia, where she occasionally observes the back end of a black bear, coyote, or gray fox.
In addition to illustrating the books about Mittens, Susan Kathleen Hartung has provided the art for numerous picture books, including One Leaf Rides the Wind by Celeste Davidson Mannis. She lives in Brooklyn, Michigan.