A cover letter is a single-page letter in which you introduce yourself to the person who may hire you. It is meant to introduce your personality rather than to lay out the facts that make your resume. So the cover letter must be unique and its goal should be to impress the reader with its organization, vocabulary and presentation.
Along with introducing yourself, your cover letter must also contain information about the kind of job you are applying for or looking for. You also need to focus on your skills and experience that are needed for the respective job. Suggested by a dissertation proposal writing service,