Unit 1 Letter layout, opening & closing a letter, subject headings; Unit 2 Parts of a letter, beginning and ending; Unit 3 Referring, giving good & bad news, saying what you can and cannot do, giving reasons; Unit 4 Requesting action, apologizing, requesting information,telexes; Unit 5 Making a mild complaint, making a point, warning, making a strong complaint; Unit 6 Personal business letters; Unit 7 Informal business letters; Unit 8 Revision and consolidation.