About the Book: This picture book explores water’s essential role in shaping life, weather, and landscapes, revealing that more than half the human body is made of it. Created with the National Trust, it covers the water cycle, microorganisms, rivers, and oceans in vivid, accessible detail for curious young readers. As the second title in the Wonder World series following Wonder World: Earth, it combines science and storytelling, and includes a scannable audiobook version for an extra layer of engagement.