Our Clerk Cover Letter Guide will provide you with all the resources and tips you need to create a successful cover letter that will help you land the job. (1) Research: Look carefully at the job description.Ask yourself, what are the 2-4 most important skills or qualities the employer needs? The letter should capture the employer's attention, show why you are writing, indicate why your employment will benefit the company, and ask for an interview. You want to highlight your interests, skills and experience that most closely match the requirements of the position and the employer. Your cover letter should. Writing a professional clerical cover letter? Use our free cover letter sample and templates to get you started on your job search. A job application is an important reflection of you. Every time you fill one out you are completing an up- to-date summary of you and your work experiences.