Objectively speaking, in that arrangement, the letters used to serve as a 'cover' _ that is, or the front page, to the whole job_hunting document, which apart from incorporating the curriculum vitae or resume, typically also tended to enclose certified copies of ones academic and professional credentials. The days when the letter used to literally cover the job_hunting documents might be long gone (as we mostly send applications, Curriculum vita or resumes and copies of certificates online as email attachments), but the cover letter has still not outlived its usefulness. The letter is the document that nowadays provides introduction to the whole job application attachment, 'and where it is all coming from. 'There are a number of formats that can be employed in drafting a cover letter whenever job hunting, depending on factors like the job that is being sought and the jobseeker's preferences.
In the first cover letter format, you should give the real reason why you are writing to the company. You have to express your enthusiasm and you should be able to match your credentials with the position's qualifications so the employer will also become eager to hire you. In the second part, express your credentials and abilities. Take note of all those things that you can offer. As much as possible, refer to the qualifications listed on their advertisement and try to illustrate how your abilities can relate to the position. In writing this part of the cover letter, it would help if you can put your best foot forward. The concluding paragraph of every correct cover letter format is for you to again express your interest over the job and allow your employer to understand how they will be able to reach you. Give your phone number and/or email address. If you can, it would be nice if you can come to their office after a couple of weeks so you can inquire about the status of your job application. Be professional in your cover letter; avoid unnecessary wordings and graphics on the paper. The simpler it is then the better.