How to Write a Cover Letter That Gets Read

Here is the uncomfortable part first. At a large employer running a high-volume pipeline, your cover letter is probably not going to be read. The recruiter has a shortlist to build by Thursday, the field is optional, and opening a second document per candidate is a cost they cannot absorb.

That is not an argument for skipping it. It is an argument for knowing which situation you are in, because there is a second category of application where the letter is the only reason you get a reply.

When the letter decides

Write one, and write it carefully, when:

• The company is small. Under about fifty people, the person reading your application is often the person you would work for. They will read it. At a ten-person company they may read it before your resume.
• You are changing fields. Your resume says one thing and the job says another. Something has to bridge that, and a resume cannot argue — it can only list.
• There is a gap, a relocation, or an odd move that a reader will notice and wonder about. Address it in one sentence and it stops being a question mark.
• The posting asks a specific question. Some do. Answering it is a filter, and roughly half of applicants fail it.
• You have a genuine connection to the company, the product, or someone who works there.

Skip it, or send something short, when you are applying through a portal at a large company for a role you match on paper, and there is nothing to explain. Your energy is better spent tailoring the resume.

The four paragraphs

The shape that works is not the shape most people are taught. It is not "why I want to work here, my qualifications, thank you for your time." It is closer to a short professional argument.

One: why you are writing, with something specific in it

The opening line does one job — get the reader to the second line. Almost every failed cover letter fails here, because it opens with a sentence that could have been sent to any company on earth.

You do not need to know something confidential. The company blog, a recent funding announcement, a product change, the wording of the posting itself — any of it is enough. The point is not that your research is impressive. The point is that this letter was written for this job.

Two: the specific thing you have done

One achievement. Not a list. Pick the piece of your history that most resembles the problem in the job description, and tell it as a small story with an outcome.

This paragraph is where people restate their resume, and it is the fastest way to lose a reader who has your resume open in the next tab. The letter's advantage over the resume is that it can include the part a bullet point has to cut: why the thing was hard, what you decided, what it cost.

When I joined, dispatch accuracy was sitting at 91% and everyone blamed the software. It was actually the handover between shifts — nothing was written down. We introduced a ten-minute structured handover and a shared log. Accuracy was 98.6% within a year, and I did not need to replace the system.

That is 60 words and it demonstrates diagnosis, judgment, and restraint. A bullet point cannot carry that.

Three: why this company, specifically

Short. Two or three sentences. And it has to survive the substitution test: if you can swap in a competitor's name and the paragraph still reads fine, it is not saying anything.

Avoid praising the company's culture, values, or mission in the abstract. Everyone does it, none of it is checkable, and it reads as flattery. Better to name something concrete — a decision they made, a market they are in, a constraint you find interesting — and say what it is about that you want to work on.

Four: a plain close

Say you would like to talk. Say when you are available if it is relevant. Stop.

No "I look forward to hearing from you at your earliest convenience." No paragraph thanking them for their time and consideration. The letter ends when the argument ends.

Length, format, and the small things

Between 200 and 350 words. One screen. Four paragraphs, none longer than about four lines. If you are past 400 words, you are almost certainly summarising your resume somewhere in the middle.

Address a person if you can find one. The posting, the company's team page, and LinkedIn will usually get you there in two minutes. If they do not, "Dear Hiring Team" is fine. "To Whom It May Concern" is not — it announces that the letter is generic, which is the exact impression you are trying to avoid.

Match the file to the resume. Same font, same header block with your name and contact details, same PDF export. A letter that looks like it came from a different application is a small signal, but it is a signal.

Name the file properly. Firstname-Lastname-Cover-Letter.pdf.

Send it as a PDF unless asked otherwise, and if the application is by email, paste the letter into the body as well. A hiring manager reading on a phone should not have to open an attachment to find out what you want.

The tells that get letters discarded

After enough applications, the failure patterns become recognisable at a glance:

• Flattery with no object. "I have long admired your commitment to innovation and excellence." Admired what, specifically.
• The resume in prose. Three paragraphs restating employment history in full sentences. The reader already has this, in a better format.
• Passion as a substitute for evidence. "I am extremely passionate about this industry" is unverifiable and therefore weightless. What you have done in the industry is not.
• Length as effort. A 700-word letter does not read as thorough. It reads as someone who did not know what to cut.
• The uncanny register. Fluent, well-organised, enthusiastic, and about nothing. This is what most AI-generated letters sound like, and hiring managers now identify it quickly. Use a tool to unstick a draft or tighten one — but the specifics have to be yours, because they are the only part that could not have been generated.

A quick way to check yours

Read the letter and ask: could this have been sent to a different company, for a different job, by a different person? If two of the three are yes, it is not finished.

Then read it aloud. Any sentence you would not say to someone across a table is a sentence to rewrite. Cover letters go wrong when people reach for a register they never use — "I would relish the opportunity to leverage my skill set" — and the fix is almost always to write what you actually mean in ordinary words.

If you are writing your first one and have no professional history to draw on yet, the approach is different enough that we covered it separately in writing a cover letter with no experience. If you would rather start from a structure than a blank page, our cover letter examples are organised by role.