Hidden World: Ocean

Six horizontal flaps are stacked up on each spread of Walden and Coleman’s satisfying introduction to ocean life. Handsome stylized portraits of the animals appear on each flap, and they are grouped by categories based on their size (blue whale, giant squid), camouflage abilities, and habitats, such as the ocean floor and coral reefs. Lifting the flaps shows each animal within its habitat, along with a brief description (“This octopus’s blue rings flash brightly when it feels threatened”). Coleman’s cheerful artwork brings readers up close to these 36 creatures, while the text offers an array of concise but intriguing details about what makes them special. Simultaneously available: Hidden World: Forest. Ages 4–6. (Mar.)