By Kate Messner
A mother and child paddle a canoe across a mountain pond, and every page shows you both what's above the water and the whole hidden world going on below it.
A mother and child slide a canoe onto a mountain pond and paddle slowly around it. The words keep to a pattern. Over the pond, a heron holds still; under the pond, the fish it's watching. Over the pond, a beaver swims across; under the pond, the lodge it's headed for. Christopher Silas Neal splits every spread at the waterline, so you see both halves of the same moment at once: the otters, the snapping turtle, the caddisfly larvae, a bullfrog dug into the mud for the night. Nothing goes wrong and nobody's in trouble. They paddle, they look, they head home as it gets dark. There's an author's note at the back about how a pond keeps itself alive.
What this one teaches, quietly, is that a habitat has layers. A pond isn't a single thing you look at from the shore. It's the surface, then the open water, then the mud, with something alive at every level. Once your child has that idea, it travels: they start applying it to the ditch behind the school or the puddle in the driveway without anyone asking them to. It's also the third book Messner and Neal have built this exact way, so if your child takes to it, there are two more of the same shape to hand over next.