The Discovery of the Americas [Paperback] [Jan 01, 1991] Betsy and Giulio Maestro Betsy Maestro Page Betsy Maestro Biography 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.