In this gentle science series, World of Wonder (4 titles), the youngest readers are given the fundamental ideas and language needed to grapple with our world's natural wonders. Each title begins with activity suggestions before a series of colorful, full-bleed spreads break the topics down into digestible tidbits--one short paragraph per page--incrementally building readers' understanding of the subject. The Awesome Night Sky tackles astronomy, touching on aspects that will already be somewhat familiar to children, like the sun, moon, other celestial bodies, and the scientific tools human used to study it all. Vocabulary terms are underlined in the text and collected in a glossary. While photography is absent, Frost's inviting illustrations give the perfect context for each lesson, and two omnipresent white children anchor the education in friendly companionship. Effective in balancing simplicity with the right selection of details, these make excellent science primers for early readers.