Notes

32 unnumbered pages : colour illustrations
Summary: There are living things so tiny millions could fit on a dot. Although they are invisible, they are everywhere and they multiply very quickly. They are vital for life on earth, and do all sorts of things - from giving us a cold and making yoghurt to wearing down mountains and helping to make the air we breathe. Find out in this amazing book how the smallest things on the planet do some of the biggest jobs. (Back cover)