Part One Basic Knowledge of Modern Business Letter Unit 1 The Language of Modern Business Letter Unit 2 Formats and Parts of Modern Business Letter Part Two Business Letter in International Trade Process Unit 3 Establishing Business Relations Unit 4 Inquiries and Replies Unit 5 Offers and Counter-offers Unit 6 Acceptance Part Three Negotiation in International Trade Terms Unit 7 Quality and Quantity Unit 8 Packing Unit 9 Price and its Terms Unit 10 Shipment Unit 11 Insurance Unit 12 Payment Unit 13 Inspection, Claims and Arbitration Part Four Sales Contracts、Letters of Credit and the Amendment of L/C Unit 14 Sales Contracts Unit 15 Letters of Credit Part Five Electronic Commerce and Other Forms of Trade Unit 16 Electronic Commerce Unit 17 Other Forms of Trade