1.1 Basic Knowledge of Business Letters Writingplay 1.2 Fax and E-mailplay 2.1 The Application of 7C Writing Principle in International Business Letters play 2.2 Writing Principles of International Business Letters in the Era of Trade Facilitation play 2.3 Writing Strategies of International Business Letters I play 2.4 Writing Strategies of International Business Letters IIplay 2.5 Customer-centered Communication Strategy for International Business Letters play 2.6 The Application of Politeness Strategies in International Business Letters play 2.7 The Use of Vague Language in International Business Lettersplay 2.8 The Rhetorical Differences Between Traditional and Modern Business Letters play 3.1 Establishment of Business Relations Iplay 3.2 Establishment of Business Relations IIplay 3.3 Enquiry and Offer play 3.4 Counter-offerplay 3.5 Sample Charges Iplay 3.6 Sample Charges II play 3.7 Shipping Iplay 3.8 Shipping IIplay 3.9 Paymentplay 3.10 Claims and Settlementplay