Unit 1 Intrnduction to Business Communication 1.1 Principles for Business Writing 1.2 Business Letter Style and Format 1.3 Sample Letters 1.4 Useful Terms and Expressions 1.5 Communication Laboratory Unit 2 Establishing Business Relations 2.1 Introduction 2.2 Credit Enqui ries 2.3 Information to Be Contained 2.4 Sample Letters 2.5 Useful Terms and Expressions 2.6 Communication Laboratory Unit 3 Enquiries and Replies 3.1 GeneraI Introduction to Enqui ries and Replies 3.2 Basic Principles for Sending Enquiries and Replies 3.3 Structures of Enqui ries and Replies 3.4 Sample Letters 3.5 UsefuI Terms and Expressions 3.6 Communication Laboratory Unit 4 Quotations,Offers and Countprnffers 4.1 General Introduction to Quotations,Offers and Counteroffers 4.2 Difference between quotations and Offers 4.3 Guidelines for Offers 4.4 Guidel ines for Counteroffers 4.5 Sample Letters 4.6 Useful Terms and Expressions 4.7 Communication Laboratory Unit 5 Orders and Thei r Execution 5.1 Generaf Introduction to Orders 5.2 Basic Contents of Orders 5.3 Replies to Orders 5.4 Sample Letters 5.5 UsefuI Terms and Expressions 5.6 Communication Laboratory Unit 6 Payment 6.1 Payment Methods for International Trade 6.2 Examples of Terms of Payment in Contracts 6.3 Letter of Credit 6.4 Sample Letters 6.5 Usefu l Terms and Expressions 6.6 Communication Laboratory Unit 7 Packing 7.1 General Introduction to Packing 7.2 Packing Containers Used in InternationaI Trade 7.3 Marks 7.4 Examples of Terms of Packing in Contracts 7.5 Packing List 7.6 Letters on Packing 7.7 Sample Letters