Betsy Maestro is the author of the "American Story" series, illustrated by her husband, Giulio. She has also written several other non-fiction picture books, including the Let's-Read-And-Find-Out science books How Do Apples Grow? and Why Do Leaves Change Color? The Maestros live in Old Lyme, Connecticut.

Loretta Krupinski has illustrated several children’s books, including Dear Rebecca, Winter Is Here by Jean Craighead George, The Irish Cinderlad by Shirley Climo, and her own Into the Woods: A Woodland Scrapbook. She has also illustrated one other book in the Let’s-Read-and-Find-Out Science series, Why Do Leaves Change Color? by Betsy Maestro. She successfully grew all the bean plants pictured in this book. She lives on the coast of Maine.