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? Instead of saying: We should be obliged if you could contact Mr Smith at an early date. ? You say: Please contact Mr Smith soon. ? ? Instead of saying: With reference to your Order 319, the goods were dispatched on the 13 of this month. ? You say: We sent your Order 319 on 13 April. ? 3) The third principle is correctness : ? You have to make sure that both the language and facts are correct. ? In terms of language, you should make sure that you make no grammatical mistakes. ? Pay attention to punctuation for it will affect the meaning of the sentence. ? You should also make sure that there are no typing mistakes. Pay special attention to numbers, such as quantity, price and so on. Principles of business letter writing ? . 1. ? Our shop, in Canada, was destroyed by fi