Coherence refers to how the overall argument or message is structured logically. Coherence is achieved when your writing follows a clear and logical progression. It ensures that each paragraph deals with one main idea, and the ideas across paragraphs follow a sensible order.

• Logical Structure: Each letter should have a clear beginning, middle, and end. Use paragraphs to divide ideas logically.

Example:

• Opening: “I am writing to express my dissatisfaction with a recent purchase.”
• Body Paragraph 1: Explain the details of the purchase and the problem encountered.
• Body Paragraph 2: State what action you want the company to take.
• Conclusion: “I hope this issue can be resolved promptly.”

• Paragraph Unity: Each paragraph should have one central idea.

Example: “First, the laptop was delivered late, which caused delays in my work. Second, the product does not match the description on your website. Finally, I have tried contacting customer service multiple times with no response.”