A cover letter and a resume should be taken into consideration when you applying for a job. As you know, a cover letter included functions as a more personal account-- why you are suitable for the job, for it could include some unique details, such as your background and interests. You can use it to emphasize your qualities and experience, which may not be shown in your resume.
There are some important points for your reference. I think that you should put your detailed contact information; you should not make it too complicated, for briefness is the best policy; also, make it valuable for the companies that you apply to. You should seize the chance to use it to emphasis your strengths. You need to address your cover letter to the head of the human resources department. It is wise to make more specific references to the particular position that you are interested in.
Here are some sample cover letters for your reference
I.
Miss * *
Human Resources Department
Company name
Address
Date
Dear Miss * *,
I got the information of a vacant position in your company from your website, and I think that I am one of the best candidates for this position. As a native speakers of Chinese, I am living and working in the US. I have profound knowledge of Finance and Accounting, and I would be grateful if you would take your time to go over my résumé attached along with this cover letter.
I am sure that I can fulfill a productive role in your company. My contact information: *
Looking forward to get your positive reply soon.
Sincerely,
(Signature)
Your Name
II.
Mr. * *
Human Resources Department
Company name
Address
Date
Dear Mr. * * ,
In response to your job vacancy advertisement for (the job), I am writing this letter to you. I have ten-year experience in (your job skills), and I have ( brief job experience emphasis on your strong points). I look forward to get your positive reply soon.
Sincerely,
(Signature)
Your Name
III.
Mr. * *
Human Resources Department
Company name
Address
Date
Dear Mr. * *,
I got the information of a vacant position in yesterday's news from your website, and I would am writing this letter to apply for the position of (the job).
After graduation from (the name of your famous university), I have been working as ( your job) for ( how many ) years in ( which field ). Since I recently married with ( whom), I have to relocated to this city from Australia. I would be grateful if you would take your time to go over my resume.
Further, there are some testimonies of my excellent job in this field:
Http://www.*.com/testimonies
http://www.*.com/achievement
…
I am looking forward to hearing from you soon.
Sincerely,
(Signature)
Your Name