Cover letters are introductory letters that are meant to accompany a resume or CV when a person is applying for a job. The purpose of a cover letter is to provide a candidate with a less formalized way to introduce themselves, their qualifications and the reasons for their interest in a particular position. Cover letter styles can vary depending on the type of position being applied for and the circumstances of the application. Industry-specific letters can prove useful when a candidate has a strong background in a specific field. A good cover letter can encourage a potential employer to read on and can help a candidate get noticed.