“What is the tallest living thing? It’s not an elephant or a giraffe or even a blue whale. It’s a tree!” This celebratory nonfiction text graphs the tallest trees in the world and chronicles how, exactly, they manage to grow so tall. Textured, lifelike collage and watercolor illustrations add awe to these arbor giants. In addition to a narrative outline of a tree’s growth process, back matter defines the critical parts of a tall tree, answers additional questions about tall trees, and provides a world map of showing where the tallest trees live. (Ages 5–10)