A cover letter is a short, one-page document you send alongside your resume when applying for a job.
It introduces you to the hiring manager, explains why you want the role, and connects your experience to what the employer is looking for.
Think of it as your personal pitch, in your own words.
What is a cover letter for a job application?
A cover letter accompanies your resume and gives you space to tell the story behind it.
Your resume lists the facts of your career.
A cover letter explains the thinking, the motivation, and the context that those facts alone cannot show.
It is especially useful when you are changing careers, returning to work after a break, or applying for a role where your background is not an exact match.
Hiring managers who are seriously interested in a candidate will almost always read it carefully, so it is worth getting right.
What are the different types of cover letters?
The type of cover letter you write depends on how and why you are applying.
- Application cover letter: The most common type. You are responding to a specific job posting and explaining why you are the right fit. This is what most people mean when they talk about a cover letter.
- Letter of interest: Sent speculatively to a company that has not advertised a vacancy. You are expressing interest in working there and inviting a conversation.
- Referral cover letter: Similar to an application cover letter, but you mention the name of someone who referred you to the role. A referral early in the letter can help you stand out from a large applicant pool. This is different to adding references to your cover letter.
- Email cover letter: A shorter version of the standard cover letter written directly in the body of an email rather than as an attachment.
What does a cover letter include?
A standard cover letter runs three to five paragraphs and follows a clear structure:
- Header: Your contact details, the employer's details, and the date.
- Opening paragraph: State the role you are applying for and give the reader a reason to keep going at the start.
- Body paragraph(s): One or two relevant achievements, explained in your own words, focused on what they mean for this specific employer.
- Closing paragraph: To end your cover letter, restate your interest and invite a conversation.
- Sign-off: A professional closing greeting such as "Sincerely," followed by your name.
What does a cover letter look like?
Here is a short example of how the structure comes together in practice:
Dear Ms. Johnson,
I am applying for the Marketing Coordinator role at Brightfield Agency. With three years of experience managing social content and paid campaigns at a mid-size retailer, I am confident I can contribute to your team from day one.
In my current position, I reduced cost-per-click by 30% over six months by restructuring our audience targeting strategy. I am drawn to Brightfield specifically because of your focus on data-led creative work, and I would welcome the chance to bring that same approach to your clients.
Thank you for your time. I would love to discuss the role further at your convenience.
Sincerely, Jordan Lee
This is three short paragraphs: an opener that states the role and your relevance, a body paragraph with a specific achievement tied to the employer's needs, and a brief, confident close.
Keep yours to this kind of length unless the job description asks for more.
Why does a cover letter matter?
A cover letter does things a resume simply cannot.
It shows genuine interest in this employer rather than any employer.
It gives context to a career path that might look unconventional on paper.
And it gives the hiring manager a sense of who you are before you ever speak to them.
Our cover letter research show that applicants are nearly twice as likely to land an interview when they include one, even when the listing says it is optional (Resume.io Cover Letter Statistics, 2025).
What makes a cover letter worth reading?
The cover letters that get noticed are written specifically for the role, not adapted from a previous application.
They focus on what the candidate brings to the employer, not just what the candidate wants.
And they sound like a real person, not a template.
Showing genuine enthusiasm for the role is more powerful than most people realize.
Hiring managers want to feel that you actually want to be there.
Letting that come through, while staying professional, gives your application a different quality to the ones that play it safe.
Free cover letter examples
Check out these examples for different jobs and experience levels for an easy template you can use for your application.
Entry-level cover letter
Teacher cover letter
Receptionist cover letter
Cleaning job cover letter
Nursing cover letter
Graphic design cover letter
Key takeaways
- A cover letter is a one-page document submitted with your resume that explains your motivation and fit for a specific role.
- It gives context that a resume cannot: your "why," your personality, and your interest in this particular employer.
- The main types are application cover letters, letters of interest, referral cover letters, and email cover letters.
- A strong cover letter is tailored, direct, and written in your own voice, helping pass ATS.
- Even when listed as optional, including one improves your chances of getting an interview.
- Structure it clearly: header, opening, body, closing, and sign-off.
Frequently asked questions about cover letters
Below are some of the most common questions asked about cover letters, from the length to customization.
Do I need a cover letter if the job listing says it's optional?
In most cases, yes. Most hiring managers still read them, and submitting one when it is listed as optional signals genuine effort and interest in the role.
It is one of the simplest ways to separate yourself from candidates who do not bother.
How long should a cover letter be?
A cover letter should be one page long, made up of three to five short paragraphs.
Aim for around 250 to 400 words.
Longer does not mean more impressive; a concise, focused letter is far more likely to be read in full than one that rambles.
Should I use the same cover letter for every application?
No. A reused cover letter is usually easy for a hiring manager to spot, and it signals that you are not particularly invested in their specific role.
You do not need to start from scratch each time, but you should tailor the key details, your opening, the achievement you lead with, and any mention of the company, to match each job you apply for.
Can you use ChatGPT to write a cover letter?
Yes, but with caution. ChatGPT can help you structure your letter, overcome a blank page, or tighten up your wording.
Where it falls short is in the details that make a cover letter actually work: your specific achievements, your real reasons for wanting the role, and the personal voice that makes a hiring manager feel like they are hearing from a person rather than a template.
Using AI as a starting point is fine.
Submitting whatever it produces without editing it is not.
Hiring managers are increasingly familiar with AI-generated writing, and a letter that sounds generic will not help your application.
