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What Is The Purpose Of A Cover Letter

By ResumAI · 24 February 2026
What Is The Purpose Of A Cover Letter

I once had a friend who swore up and down that cover letters were a waste of time. She had this belief that nobody actually read them, or that hiring managers just skipped straight to the resume. Honestly, I get why people think that. They can feel like extra homework on top of the already tricky task of perfecting your resume. But here's the thing: cover letters matter more than most people realize.

A cover letter is your chance to explain what your resume can't. Think about it. Your resume is a bunch of bullet points, dates, and job titles. Sure, it shows your qualifications, but it doesn’t tell your story. A cover letter gives you space to explain why you want the job, why you're interested in the company, and even why you're switching careers (if that's the case). It’s like your personal pitch, the "here’s why I’m a great fit" moment.

I had a client once who was moving from teaching into project management. Her resume was solid, but it didn’t scream "project manager" at first glance. In her cover letter, she explained how running a classroom and planning lessons made her organized, adaptable, and great at working with different teams. Those things didn’t pop off the page on her resume, but her letter made the connection clear. She got interviews.

Sometimes, it’s not even about explaining your resume, but showing enthusiasm for the job. Hiring managers want to see that you’re genuinely interested in the role and the company. A lot of folks skip this part in their resumes altogether, but a cover letter can make you stand out just by showing some passion. Like, don’t just say "I want to work for your company", say why. Maybe their mission speaks to you or their recent project is something you’re excited about. It sounds simple, but it works.

Now, not every hiring manager reads cover letters, that’s true. Some are all about the resume. But, and this is important, you don’t know which ones are skimming or skipping and which ones are actually reading. Why take the chance of leaving it out? In some cases, they might even use the cover letter as a quick way to decide who to move forward with. It’s not always fair, but if your letter is thoughtful and well-written, it could tip the scales in your favor.

Here’s another thing. A cover letter is also your chance to address any weird gaps or changes in your career. Like, let’s say you took a year off to travel or had to leave your last job to care for a sick family member. Putting that in your resume would seem odd, but a cover letter lets you explain it in a way that’s professional and reasonable. You don’t have to give your whole life story, but a sentence or two can clear up questions before they even come up.

Of course, plenty of people overthink these letters. Don’t write a novel. Don’t repeat your resume line for line. And definitely don’t make it sound like a generic template you copied off the internet. The best cover letters feel personal. They’re written for that specific job. If you’re thinking, "Wow, that sounds like a lot of work", you’re not wrong. But it’s not as bad as it seems. Even spending 15 minutes customizing a template can make a difference.

A while back, I was helping someone rewrite their cover letter for a marketing role. He had a pretty standard letter that could’ve worked for any job. It was fine, but just fine doesn’t get interviews. So I asked what stood out to him about the company. He mentioned their recent ad campaign and how he admired the creativity behind it. I told him to highlight that in his letter. He did, and he got the job.

So that’s the purpose of a cover letter. It’s not just a formality; it’s your shot to tell a story, show enthusiasm, and clear up any doubts. Sure, it takes effort, but if it gets you one step closer to the job you want, it’s worth it.

What about you? Do you skip cover letters or dive right in? Maybe next time you’re applying, take a moment to think about what your resume might be missing. That’s where the cover letter comes in.


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