Do write a person, not a letter.

There are also many people who believe that making a letter sound businesslike means using stuffy, stilted language full of  cliches and jargon. Certainly, your letter should be professional. However, it must also be interesting, appealing, and reflect your personality.

To create a letter appropriate to the business world, include relevant facts and succinct language. Ensure correct spelling and proper presentation. To make your letter appealing, use the same tone of voice you would use during the interview— when you don’t have time to consult a thesaurus and replace the words you’d normally use with multisyllabic synonyms. Write with the attitude that you’re writing to a person. That person may be your interviewer, your next boss, a human resources executive, or a recruiter—but a person. Before you write, try to picture him or her. Try saying out loud the points you wish to make as if you were sitting face to face in an interview, and then jot them down. Flesh out these ideas into full sentences that reflect the way you speak. After all, your interviewer will want to meet the person to whom she was introduced in your letter, and it had better be you!