Unit 1
　Business Letter Writing
　Layout of Business Letters
　Writing Principles of Business Letters
Unit 2
　Invitation and Arrangement of Visits
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 3
　Establishing Business Relations
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 4
　Enquiries and Replies
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 5
　Quotations, Offers and Counter-offers
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 6
　Sales Promotion
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 7
　Orders and Their Fuffilment
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Comprehension
Unit 8
　Payment
　Introduction
　Points for Attention
　Business Letters
　Language Points
　Word Study
　Useful Sentence Menu
　Exercises
　Reading and Conrehension
　……