The most important aspect of the cover letter is your focus on the employer. Cover letters are one-page documents consisting of at least three parts.The purpose of a cover letter is to make a compelling case for yourself as a candidate for a particular job, and it complements what's in your resume. Always write a cover letter from scratch. Include your contact information in the top right hand corner. Put your name in bold and or larger font to let employers immediately know who you are. In this guide, we will discuss the importance of a cover letter and provide you with tips and tricks to help you craft an effective one. Get help with resumes, cover letters, CVs, job and internship searches, and interview tips. Monday, Tuesday, Wednesday (12pm-2pm). In this guide, we will discuss the importance of a cover letter and provide you with tips and tricks to help you craft an effective one.