You'll never guess how your body fights germs or how dinosaurs fought each other, what kind of animal is named after Sir David Attenborough and what sunsets look like on Mars. All is revealed in this delightful collection of four books. A brilliant addition to any family bookshop, the Big Book of Things to Know contains amazing facts from Lots of things to know about Your Body, Space, Animals and Dinosaurs in a single volume bursting with vibrant illustrations and packed with quirky and surprising things to know.