Looks Do Count
Your cover letter (or e-letter if your contact is online) is as important, if not more so, than your résumé. Why? Because it's the first thing an employer sees from you. If your cover letter doesn't look professional or if there are misspelled words, grammatical errors, sentence fragments or other mistakes, you're not making a very good first impression. And you know what they say about first impressions, don't you?
A cover letter isn't a great work of literature. It's a marketing tool. So don't spend hours trying to come up with a clever "hook" to grab the reader's attention. Keep it simple and direct.
Sample of a Cover Letter