"The purpose of effective writing at work is always to accomplish a specific goal and to be as persuasive as possible. Effective writing on the job is carefully planned, thoroughly researched, and clearly presented.
Knowing who makes up your audience is one of your most important responsibilities as a writer. Keep in mind that you are not writing for yourself but for a specific reader or group of readers. Expect to analyze your audience throughout the com- posing process.
The tone of your writing is especially important in occupational writing because it reflects the image you project to your readers and thus determines how they will respond to you, your work, and your company. Depending on your tone, you can appear sincere and intelligent or angry and uninformed."