The Oxford English Grammar is a book with authentic discourses about English language and grammar, by Prof. Sidney Greenbaum. in the beginning, there is a general discussion about the international, regional and social variations of the English language. The Oxford English Grammar details the attitudes of native and non-native speakers to the English language. It covers the development of grammar and also the modern approaches to it. It includes the current usage of grammar starting from a single word to a phrase, a clause or a sentence. The last chapter of The Oxford English Grammar covers usage of grammar in discourse, word formation, punctuation, pronunciation and spelling. A complete index is provided for additional help. The examples of usage are cited from a big variety of sources, including the Corpus of English At University College London. The book is available in paperback. It is the Oxford University Press' Sixth Impression Edition of the book.