I have learned the importance of writing a cover letter and what they are used for. It is sent with a resume for when you are trying to apply for a job. It should let the hiring manager or whoever it was sent to know a little about you and how you are a great fit for the job. Also at the ending should be telling them that you can't wait to be having a meeting with them and also how they can contact you. It is important you say that you can't wait to have a meeting because that shows your eager to work for that company or business you had applied for.