Gareth King: Colloquial English

Although this book is a member of the Colloquial series, and
conforms broadly with the format and approach of other titles in the series, Colloquial English necessarily departs in some respects from its fellows.
For a start, it is written in the target language, and an assumption of prior knowledge of the language must therefore be made. Nonetheless, I have tried to keep explanations simple and succinct, allowing the context of the dialogues and exercises to show the user how the language works.