How Things Work

Friends Koko and Alex return to study science, engineering, and more in this fact-filled activity book, which follows My Animal Book, My Big World, and other titles from U.K. children’s magazine Okido. Questions like “How was this book made?” and “What is a machine?” drive readers forward as they learn about water, light, movement, and more. In a section about materials, readers are asked to consider the usefulness of a paper hammer and a bicycle made from wool, while a spread devoted to how television works encourages kids to make one out of a cardboard box. It’s an entertaining introduction to an array of useful scientific concepts. Ages 4–up. (Apr.)