By Catherine D. Hughes
A thick, dip-into first reference on space for the youngest child, a photo-filled spread at a time on the sun, the moon, every planet, and how people get up there.
It's the fat first reference in National Geographic's First Big Book series, the one built for dipping into a spread at a time. Each two-page spread takes on a single thing: the sun, the moon, Mercury, Mars, Saturn's rings, comets, what a rocket actually does. One big image, a few short sentences. Some of those images are real NASA photographs; others are David Aguilar's paintings of places no camera has reached. Many spreads end with a small question or a 'try this,' so a four-year-old is pointing and answering along the way. At 128 pages it has real heft, but you never have to read past the two pages in front of you.
It lands at the age when a child first gets hungry for real space facts but can't yet sit and read a reference alone. The sentences are short, the pictures carry most of the teaching, and the spread-by-spread build means a five-minute visit and a half-hour one both work. It's a step up from a board book of planets and still gentle enough that a four-year-old won't get lost. If it clicks, the same First Big Book format covers dinosaurs, animals, the ocean, and plenty more, so there's an easy next step if space stays a favorite.