Read the text to understand the purpose of cover letter and the main points of writing it.
COVER LETTER
Whenever you send out a resume, it must be accompanied with a cover letter. The purpose of the letter is to personalize your resume for an employer, and enable you to elaborate more fully on your qualifications.
Why a powerful cover letter is essential?
The average employer is likely to be swamped with applications. Often employers receive more than 100 applications for every single position. Put yourself in the place of the employer who has the task of sifting through stacks of letters hoping to find something that will cause him/her to reach for the telephone. You want your letter to stand out.