A cover letter should answer, "Why should the employer hire you? Always aim to be answering the question of "Why should we hire you?" and back up everything you say with specific examples from your background.Always write a cover letter from scratch. Your cover letter should articulate your qualifications and motivation for the position. Read the job description closely and research the organization. Your cover letter should discuss the most important aspects of the education, experience, skills, and qualifications that are listed in your resume. An effective cover letter is written in a formal business-letter format and is one page in length. Cover letters are strategically tailored to present the accomplishments, skills and experiences that are transferable to a new position. Your cover letter should go beyond your work history to talk about things that make you especially wellsuited for the job. Cover letters are strategically tailored to present the accomplishments, skills and experiences that are transferable to a new position.