The book is broken down into three general areas. They include Our World, How Things Began, The Human Body, How other Creatures Live and How things are Made. Each question asked is quite precise: How big is the universe? Who invented shoes? Why doesn't an igloo melt inside? What is regeneration? Why do we need vitamin C? Can dogs see colors? Why do we get pimples? Who were the first pirates? This is just a sampling. The answers are also as precise as possible.