A Cover Letter is typically written in a formal email/letter style format. It should be about 3-4 paragraphs in length. Writing a cover letter for a job position, even if it is not on the application is a good way to put yourself ahead of the crowd and make yourself stand out.
This letter should include contact info, date, and name at the top. It should be addressed to the potential employer or company. The body paragraphs should explain your skills that align heavily with the job position and explain why you are a great candidate for the role.
A good cover letter goes a long way!