ABSTRACT
In this book we have tended to give advice on how words, phrases and grammatical constructions are used in terms of formal and informal language. Although this distinction is not always the most appropriate, it is in most circumstances more useful than the distinction between written and spoken language, since in practice both written and spoken language exist in formal and informal varieties, and formal written language, for example, will tend to have more in common with formal spoken language than it will with informal written language.
