Acorn is the new Heinemann Library brand for 2006. There are 32 titles in total for the Science and Geography curriculum. Each title is levelled for 4-6 year olds to build their confidence. Simple, patterned text and predictable page design helps to develop understanding of key issues and text is closely matched to the pictures. Throughout the world, weather affects what we do, how we dress and where we live. Each book in this new series focuses on a specific type of weather.