When should you stop writing a memo, letter, or email? When you’ve said everything you NEED to say. That sounds obvious, but too many businesspeople feel they must write long memos, letters, and reports or they will appear unintelligent to their readers. Nothing is further from the truth. The moment you start writing simply to add length, is when your document starts to become illogical, off-topic, and wordy. Then you really sound unintelligent. If your message can be conveyed in one sentence, stop there and hit the SEND button. You will be praised for your brevity.