What are the qualities of an effective business letter?

Here are the 7 qualities of a effective business letter:

1. Completeness: This deals with answering all inquiries or questions, and checking for the 5 W's (who, what, when, where, why).
2. Conciseness: Eliminate Wordy expressions and irrelevant statements and avoid unnecessary repetition.
3. Consideration: This demands that the writer focuses on the "you" and not on the "I" or "we". Emphasize reader benefits, and the positive pleasant facts. Instead of writing "I will have the products delivered to you…," you may rephrase it as "You should receive your orders by…".
4. Concreteness: Using specific facts and figures, putting action in your verbs, and using clear, vivid, image - building Words are necessary for concreteness. Instead of writing " Our product has won several prestigious awards," you may write "Our product has won the prestigious XYZ award for the past five years."
5. Clarity: Using short, conversational, and familiar Words helps with this principle.
6. Courtesy: Try to be sensitive to the reader's needs. Be tactful in Wording your letter. And most important, answer all letters that require response from you!
7. Correctness: At the end of each letter ask yourself again, for the ninth time, is this letter appropriate to the level of understanding of the person /s who are going to read it. Is your language appropriate? In the end, business letter writing is not just about using business letter templates," explains Ducepec. "Business letter writing is about you, the company you represent and work for, and your readers. It is about creating an attitude of professionalism and respect."