"Readers may get goose bumps as the book winds down and night falls. 'One moon. // One sun. / One Earth so beautiful.' The book's final line resonates: 'Remember-- / only one.'"
"A helping-hands concept and fantastical illustrations elevate rhyming text in this earnest ecological counting book. . . . As the text conveys the preciousness of a single Earth, Coelho's illustrations portray it with soft, pencil-like texture."