How to Write a Cover Letter: Structure, Examples, and What to Skip
Published · 9 min read
Most cover letters die in the first sentence. The writer announces that they are writing to express interest in a position they saw advertised, which the reader already knows, and the letter never recovers. If you fix one thing about yours, fix the first two lines.
This guide covers what a cover letter is, what it does that a resume cannot, how to build it paragraph by paragraph, and the questions that stall people at the last minute: length, who to address it to, attachment or email body, and when writing one is a waste of your evening.
What is a cover letter?
A cover letter is a short document, usually one page, sent with your resume when you apply for a job. It is written in full sentences, addressed to a person or a hiring team, and it argues for one role at one employer. On some forms and in some countries it is called an application letter or a letter of motivation. The name changes, the job does not.
It is not your resume rewritten in prose, and it is not an essay about your journey. It is a short, evidenced argument answering three questions the resume leaves open: why this employer, why this role, and why you rather than the next application in the pile. Four paragraphs covers all three.
What a cover letter does that your resume cannot
A resume and cover letter do different work, which is why employers ask for both. The resume is a structured record of titles, dates and bullets, built to be scanned in seconds and parsed by software. It reports facts and never explains them. Nothing on it says why you left an industry, why a two-year gap exists, or what you actually want next.
The letter is where that reasoning goes. It also does something structural: it decides which single piece of your history the reader looks at first. A resume gives equal visual weight to eight years of work. A letter says this is the part that matters for your job, and here is what happened.
Treat the two as one package: same name block, same font, same contact details, same file naming pattern. A letter typeset differently from the resume it arrives with looks borrowed, because it usually is.
The honest part: plenty of cover letters are never read
You should know this before you spend an hour on one. A recruiter screening several hundred applications works from the resume, the screening question answers and the required qualifications. On many application forms, including ones built on systems like Greenhouse and Workday, the cover letter field is marked optional, and optional fields get skipped by readers as well as by applicants. Recruiters disagree publicly about whether they read them, and the honest answer is that it depends on the company, the role and the week.
That is an argument for spending your effort where it pays, not for skipping the letter everywhere. In some situations the letter does more work than anything on the resume.
- Career changers. Your resume shows the wrong job titles, and the letter is the only place to connect the old work to the new job.
- Employment gaps or an unusual path. One short, unapologetic sentence closes a question the resume leaves hanging.
- Speculative applications. With no posting, the letter is the application and the resume only backs it up.
- Small companies. At twenty people the reader is often the founder or your future manager, and they read everything.
- Roles where writing is the work: marketing, communications, support, policy, teaching, law. The letter is a work sample.
- Referrals. When someone forwards you internally, your letter is what they paste into the message.
The four paragraphs, and the job each one does
A working cover letter runs roughly 250 to 400 words across four short paragraphs: an opening that earns the next paragraph, a paragraph on why this employer, a paragraph of evidence, and a close that asks for something. Written in that order, each one has exactly one job.
Paragraph one: the opening line
This is where most letters die, so it is worth an example. Here is the version almost everyone writes:
"I am writing to express my interest in the Marketing Coordinator position at Brightline Media, which I saw advertised on LinkedIn. I believe my skills and experience make me an excellent candidate for this role."
Two sentences, zero information. The first repeats what the application form already said. The second is a claim with nothing behind it, and every other applicant made the same claim. The same candidate, rewritten:
"I run the email program at a twelve-person agency. Over eight months I rebuilt our segmentation and took a 40,000-person list from a 14 percent open rate to 31 percent. Brightline is the first Marketing Coordinator posting I have read that puts lifecycle email at the center of the job instead of at the bottom of the list, which is why I am applying."
Same person, same job, roughly the same length. The rewrite leads with a concrete result, then names a detail from the posting to explain why this employer got the letter. The reader now knows what you do, how well you do it, and that you read the job description. That buys the second paragraph.
Tip: Write the opening last. It is far easier to pick your strongest line once the proof paragraph exists, and the sentence you were most proud of in the middle of the letter is often the one that belongs at the top.
Paragraph two: why this company
Name one specific thing and connect it to your work: a product they shipped, a market they moved into, a policy they published, a constraint visible in the job description. One real detail beats three sentences of praise, and praise is the trap here. "A recognized leader in the industry" could be written about any employer, which tells the reader you know nothing about this one.
The link back to you is the part people forget. Do not just observe the detail, say what it means for the work you would do. "You opened three new markets last year, and localized campaigns are the part of my current job I would happily do full time" only works for one company. That is the standard.
Paragraph three: the proof
One story told properly beats a list of four. Pick the accomplishment closest to the top requirement in the posting and give it a shape: the situation, what you personally did, and what changed. Personally is the load-bearing word. Plenty of letters describe what a team achieved while carefully avoiding what the writer contributed.
Use numbers where you honestly have them and scope where you do not. Not every job produces a metric. "First analyst on a three-person team, owning reporting for two regions" tells a reader as much as a percentage does, and it survives an interview. Never invent a figure. The follow-up question is always how you measured it.
Paragraph four: the close
Ask for something specific and stop. "Thank you for your time and consideration, I look forward to hearing from you at your earliest convenience" is polite noise that ends the letter on the reader's obligations. Compare it with this: "I would like to talk about how the segmentation work translates to a list your size. I am free for a call most afternoons, and my resume is attached." Confident, concrete, finished. Sign with your name and a phone number.
Tip: Read the letter back and delete every sentence that would still be true if you sent it to a different company. Whatever survives is the actual letter. If almost nothing survives, you have found the reason your applications are silent.
How long it should be, and how to send it
One page, always, and 250 to 400 words. Under 200 usually means you skipped the evidence. Over 500 means the reader is skimming, which defeats the point of choosing what they see first. If a form imposes a character limit, that limit is the brief: cut context, not evidence.
How you deliver it depends on where you are applying, and the rules are simple.
- Form with a file upload: attach a PDF unless DOCX is requested, named Firstname-Lastname-Cover-Letter.pdf so it is identifiable in a folder of two hundred files.
- Form with a plain text box: paste plain text and check your line breaks before submitting. Curly quotes and bullets from a word processor often arrive as garbage.
- Applying by email: the letter goes in the body, not attached. Nobody opens two attachments from an empty message. Subject line is the role title and your name.
- A form plus a named contact: submit through the form, since that is where the process lives.
Who to address it to, and what to do when nobody is named
A name is better than no name, and it is findable more often than people assume. Spend ten minutes, not an hour.
- Read the posting again. Recruiters often sign them, and application emails often go to a named inbox.
- Search LinkedIn for the company plus the likely title: recruiter, talent partner, head of the department you would join.
- Check whether an individual posted the job rather than the company page. That person is usually the recruiter or the hiring manager.
- Look at the company About or Team page. Small companies list everyone.
- See who shared the opening on social media. People post roles on their own teams.
If ten minutes produces nothing, write "Dear Hiring Manager". It is neutral, and nobody has been rejected for it. Skip "To Whom It May Concern" and "Dear Sir or Madam", which read as templates from another decade. At a small company, "Dear [Company] team" is fine and often warmer.
Tip: Never guess a name. Addressing the letter to the wrong person, or to someone who left last year, is worse than addressing nobody. If you are not sure that person is still in the role, use the generic greeting.
When a cover letter is genuinely optional
Skip it when the posting says not to send one, when the form has no field for it, and when the employer scores structured criteria fields instead, as public sector applications often do. There the letter is not the assessed document and adding one changes nothing.
The harder case is an optional field at a large employer when you are a straightforward match: right title, right industry, right years, applying alongside hundreds of others. A tailored letter is a small edge there and a generic one is a small liability, because a letter that says nothing proves you send the same thing everywhere. If you have twenty minutes, write the real one. If you have five, submit without it and apply to fewer jobs properly.
Before you send it
- The company name is right everywhere, including the file name. Wrong company name is an instant rejection and it happens constantly.
- The job title matches the posting word for word.
- The opening sentence contains a fact, not an intention.
- One accomplishment is detailed enough to survive a follow-up question.
- Nothing in the letter simply repeats a resume bullet.
- It fits on one page and reads out loud without you running out of breath.
- Header, font and contact details match your resume exactly.
The letter that works is short, specific and written for one employer. It leads with something you did, names something real about them, proves one claim and asks for a conversation. The greeting, the font and the sign-off all matter far less than whether the first two lines gave a busy reader a reason to keep going.