Tractor and Digger : Oxford University Press : 9780198370796 : 0198370792 : 08 Sep 2016 : Tractor and Digger both try to prove that they are the best machine. From digging to lifting, ploughing to sowing, children will learn how machines are used in farming in this engaging and original book. With a wonderful mix of illustrations and photographs, the farm and machines are brought to life. Oxford Reading Tree inFact is a compelling non-fiction series that aims to engage children in reading for pleasure as powerfully as fiction does. The series includes 36 titles which are all phonically decodable, with some high-interest topic words to develop vocabulary and impart knowledge. The imaginative approach and variety of intriguing topics mean there are books to interest every child. The books are carefully levelled, making it easy to match every reader to the right book.