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.

Giulio Maestro is the illustrator of over 100 children’s books. He has also written his own books of word play and has co-authored two I Can Read Books with his son, Marco: What Do You Hear When Cows Sing, and Other Silly Riddles and Geese Find the Missing Piece: School Time Riddle Rhymes. The Maestros live in Old Lyme, CT.