Most job seekers write their resume first, then treat the cover letter as an afterthought — a rushed paragraph restating the same bullet points in sentence form.
That’s a mistake worth fixing. In a 2022 ResumeGenius survey of 625 U.S. hiring managers, 94% said cover letters influence their interview decisions — and 45% said they read the cover letter before the resume.
This guide walks through the whole process: format, opening, body, closing, and the situations that need a different approach — with real, usable examples at every step.
What a cover letter actually needs to do
Your resume lists facts: job titles, dates, skills. A cover letter explains the story behind them — why you’re applying, what specifically qualifies you, and why this role at this company, not just any role at any company.
It’s not a summary of your resume in paragraph form. If every sentence could apply to any job you’ve ever wanted, it isn’t doing its job yet.
A good test: read your draft and ask whether a specific sentence in it could only have been written for this job posting. If nothing passes that test, you’ve written a template, not a cover letter.
| Paragraph | Job | Length |
|---|---|---|
| Opening | One specific line proving you researched this employer, not a generic intro | 1-2 sentences |
| Body | One real, measurable achievement tied directly to what the posting asks for | 3-4 sentences |
| Closing | A direct ask for the interview, not a passive sign-off | 1-2 sentences |
Before you write: spend ten minutes on the company
The single biggest difference between a specific opening line and a generic one isn’t writing skill — it’s whether you actually know something about the employer beyond the job title.
Ten minutes is usually enough: read the “About” section on their site, skim their most recent press mention or product launch, and check whether the job posting itself names a specific team, tool, or initiative you can reference directly.
You’re not looking for something impressive to say about the company — you’re looking for the one detail specific enough that it couldn’t apply to a competitor. That detail is what your opening line is built around.
If you genuinely can’t find anything — a small company with no online presence, a generic internal job board posting — it’s fine to anchor on the role itself instead: what the responsibilities suggest about what they’re struggling with right now, and how your background addresses that specifically.
Tailor it to the job description, not just the company
Research gets you a good opening line. The job description itself is what should shape the rest of the letter.
Read through it and note the two or three requirements mentioned most specifically — not “strong communication skills” (every posting says that), but the concrete ones: a specific tool, a certification, a type of project. Your body paragraph should speak directly to whichever one you can back up with a real example.
This matters for a second reason too: many of the same keyword-matching mechanics that apply to resumes apply here. If a recruiter searches an applicant database for a specific skill and your cover letter is stored alongside your resume, using the posting’s own language — rather than a rough synonym — helps you show up in that search. For the deeper mechanics of how this works on the resume side, see how to write a resume skills section.
Step 1: Get the format right first
Before you write a word, the shape of the document matters: 3-4 short paragraphs, 250-400 words total, one page, single column.
Standard business-letter structure — your contact info, the date, the employer’s details, a formal salutation — still applies, even though almost nobody prints and mails these anymore. It signals you know the convention.
For the full breakdown — margins, fonts, exact length rules by situation, and how this maps to an actual template — see cover letter format: margins, fonts, length & layout rules. Or skip straight to a pre-formatted cover letter template and drop your content in.
File format: PDF, almost always
Export as a text-based PDF unless the application instructions specifically ask for something else. It preserves your formatting exactly across every device and email client, and — same as a resume — a text-based PDF still parses cleanly if a system does scan it. Avoid a scanned image or a screenshot saved as a PDF; that extracts as nothing.
Step 2: Open with something specific, not a formula
The first line is where most cover letters lose the reader. “I am writing to apply for the Marketing Manager position” tells them nothing they don’t already know from the subject line.
Wensa’s shift from generic templates to ATS-tested designs is exactly the kind of product decision I want to be making — I’ve spent the last three years doing precisely that at a competing resume platform.
I am writing to express my interest in the Product Manager position at your company. I believe my skills and experience make me a strong candidate.
One reads as a form letter with the company name swapped in. The other could only have been written by someone who actually looked at this specific company.
A full bank of openers, sign-offs, and how to address a letter when you don’t have a name to write to — see cover letter openings, salutations & sign-offs, with word-for-word examples.
Step 3: Build the body around one real example
Resist the urge to summarize your whole career. One well-explained achievement, tied directly to what the posting is asking for, beats five generic claims.
In my current role, I noticed our onboarding emails had a 12% open rate — well below industry benchmarks. I rebuilt the sequence around behavioral triggers instead of a fixed schedule, which brought that number to 34% within two months. I’d bring the same instinct for finding the metric that’s quietly underperforming to your growth team.
Notice what that paragraph does: names a specific number, describes the actual action taken, states the measurable result, then connects it directly to the role being applied for. That’s the whole formula — most of the work is picking the right example, not finding clever phrasing.
Keep it to one, maybe two examples like this. A cover letter that tries to prove everything proves nothing memorably.
Step 4: Close by asking for the interview directly
Don’t trail off with “Thank you for your time and consideration. I look forward to hearing from you soon” — it’s the passive default nearly everyone reaches for. Ask for the specific next step instead: “I’d welcome the chance to talk through how this experience applies to your growth team — I’m available for a call this week or next.”
More sign-off examples — including how to close without sounding either stiff or overly casual — are in the openings and closings guide linked above.
Not every situation calls for the same letter
The structure above holds regardless of your background, but a few specific situations change what you’re actually arguing for.
No relevant work experience yet
The formula shifts from “here’s my proven track record” to “here’s the specific evidence I can already do this” — coursework, a class project, volunteer work, or a skill you’ve genuinely built outside a formal job. See how to write a cover letter with no work experience for the full framework and examples.
Changing careers or industries
Here the job is explaining a connection a hiring manager won’t draw on their own — translating what “5 years managing restaurant operations” actually means for a logistics coordinator role, for instance. See how to write a career change cover letter, including a framework for translating old-field experience into new-field language.
Applying through a referral
Name the person and your connection to them in the first sentence — not buried in paragraph two. “Jamie Torres on your data team suggested I reach out” does more work in ten words than most entire opening paragraphs, because it immediately answers the reader’s first question: why is this landing in front of me specifically.
Explaining a gap or a short tenure
One sentence, stated plainly, is almost always enough — a health issue, a layoff, a caregiving responsibility. Don’t apologize for it or spend a paragraph justifying it; state it once, then pivot immediately back to why you’re a strong fit for this specific role. A cover letter that spends too long explaining the past reads as less confident about the future.
Can you use AI to help write it?
As a starting point, yes — but a cover letter that reads like it was generated wholesale is easy to spot, and hiring managers notice. The useful version of this is narrower: specific prompts that get you a real first draft, plus an editing pass that removes the tells.
See how to use ChatGPT to write a cover letter for the actual prompts and the checklist for what to fix afterward.
Applying by email vs. attaching a document
Everything above assumes a formatted document — but plenty of applications ask you to paste the letter directly into an email or a text box instead of attaching a file. The content stays identical; a few format details change.
Drop the formal header (your name and the date are already visible in the email’s own header), start straight with the salutation, and use blank lines between paragraphs rather than indents, since indentation doesn’t always survive being pasted into a plain-text field. For the full breakdown of format differences by submission method, see cover letter format: margins, fonts, length & layout rules.
A complete example, start to finish
Dear Hiring Manager,
Wensa’s shift from generic templates to ATS-tested designs is exactly the kind of product decision I want to be making — I’ve spent the last three years doing precisely that at a competing resume platform.
In my current role, I noticed our onboarding emails had a 12% open rate — well below industry benchmarks. I rebuilt the sequence around behavioral triggers instead of a fixed schedule, which brought that number to 34% within two months. I’d bring the same instinct for finding the metric that’s quietly underperforming to your growth team.
I’d welcome the chance to talk through how this experience applies to your growth team — I’m available for a call this week or next.
Sincerely,
Jordan Lee
Four short paragraphs, one specific example, a direct ask. That’s the entire shape — everything else is adapting it to your own background and the job in front of you.
A last check before you send it
Run through this once your draft feels finished — it catches the errors that survive a first read-through unnoticed.
Before you attach and send
- The company name is correct everywhere — including if you reused a draft from a different application
- The opening line couldn’t apply to any other employer
- At least one specific, measurable achievement appears in the body
- It’s 250-400 words, one page, single column
- The closing asks for a specific next step, not just “looking forward to hearing from you”
- The font and header style match your resume
The mistakes that undo an otherwise good letter
Most cover letter problems aren’t about the writing quality — they’re specific, fixable errors: restating the resume instead of adding to it, a salutation that’s clearly copy-pasted, an opening that could apply to any job.
For a full line-by-line breakdown with before-and-after rewrites, see 25 cover letter mistakes that get applications rejected.
Ready to write your cover letter?
Write a job-ready cover letter in minutes with our AI-powered builder.
Create Cover Letter
FAQ
How long should a cover letter be?
250-400 words, three to four short paragraphs, one page. Longer than that and even a strong pitch starts losing the reader.
Do I really need a cover letter if it’s marked optional?
In most cases, yes. The same 2022 ResumeGenius survey found 60% of US companies require a cover letter, rising to 72% at medium-sized companies and 69% at large ones, against 49% at small businesses — and plenty of the “optional” postings still have a hiring manager who reads it anyway.
Should my cover letter repeat what’s on my resume?
No — that’s the single most common complaint from hiring managers. Your resume already lists the facts; the cover letter’s job is to explain the one or two most relevant ones in more depth, not summarize all of them again.
Should my cover letter match my resume’s design?
Yes — same font, header style, and overall tone. A cover letter that looks nothing like the resume it’s paired with reads as an afterthought, even when the writing itself is strong. Our cover letter templates are built to match the corresponding resume templates for exactly this reason.
Can I use the same cover letter for every application?
You can reuse the structure and even most of the sentences, but the opening line and at least one specific detail should change per employer. A letter that’s 100% identical across applications reads that way to anyone who’s read more than one of them.
What if the application doesn’t ask for a cover letter at all?
Send one anyway if there’s a way to attach or paste one — it costs you little and, per the same survey above, a meaningful share of hiring managers read it even when it isn’t required. The exception is a strict online form with no field for it at all; in that case, there’s nothing to send.
Final thoughts
A cover letter earns its place by adding something a resume can’t: context, specificity, and a direct case for why you’re the right fit for this particular role.
Get the format right, open with something specific, build the body around one real example, and close by asking for the interview. Everything else in this guide is a deeper pass on one of those four steps.
Ready to put it together? Browse cover letter examples by profession for a starting point close to your own background, or jump straight into our cover letter builder to write yours now.
