A good cover letter does not reiterate the specific accomplishments in the resume. The resume is the place where we demonstrate in concrete terms what we have done and how well we have done it. The cover letter is more about who we are, what we stand for, why others have appreciated us, and how we can bring value to their company.
The cover letter is more abstract. It is about our feelings, our commitment, our drive, and our interests. If a cover letter is the theorem, the resume is the proof. In the cover letter, we tell them why we can be an asset to them. In the resume, we must show how we have been an asset to others.
The cover letter and resume compliment each other. If done well they fit hand in glove and combine to make a powerful impression.
1

A resume is constantly accompanied by a covering letter for a resume which will be your chance to right away introduce yourself and capture the interest of prospective employer. The covering letter for a resume will be your possibility to encourage by yourself which could at some point lead to a task job interview. In all circumstances, it ought to not be a duplication of the resume and there really should be some personalized touch to get that vital initial impression.