Plenty has been written to help you craft the perfect resume, cover letter or other job search documents. You can find a hundred articles to teach you all about keywords, experience sections, and achievement lists. This advice, if it’s solid, does gives you a leg up on the competition. Professional writing, however, is about more than using the proper format and pleasing the applicant tracking system.
If your resume is your first chance to make a good impression, your cover letter is the foot in the door that gets you that chance. Without it, your resume doesn’t even get considered. It is important, therefore, to have a firm grasp of cover letter basics including the acceptable, and most effective, structure and format.