Making a cover letter is pretty straightforward. You want it to be short and sweet. In the first paragraph, state That you’re looking for the type of job they are offering and why.
In the second paragraph, state what skills you have that will help you do this job well and maybe an award you might have won while doing something similar.
In the third paragraph, tell them why you feel working for them would be mutually beneficial.
Do not use more than one page for your cover letter. The paragraphs should be anywhere between three and four lines. The middle paragraph could be 5 to 6 lines.
Some companies will not read your package if you do not have a cover letter, and others will ignore the cover letter. The problem is that you don’t know which companies are which. Take the time to write an excellent cover letter. Make it personal between you and the company.