A cover letter is supposed to be a short document introducing yourself and explaining the job position being sought as a backing for ur CV. Its generally expected to be a short document in font size 11-12. U can see a SAMPLE below....wishing all the best...

Sample Cover Letter

The HR Manager,
J.J Jumoke Enterprises,
.............2007

Dear Sir,

I am a highly capable individual seeking an employment opportunity in the Office Accountant Post recently advertised by your company.

I have attached my up to date CV for your appraisal.

You will see from my CV that I am adept at applying myself to a wide variety of responsibilities and I know I would be an ideal candidate for your consideration. I am a hard working, conscientious, highly motivated individual and take great pride in my work. I feel that I would be able to make a significant contribution to your company.

I would welcome hearing from you.

Yours sincerely,
Meeting E. Vincent