The Cover Letter Guide: What to Say When You Don't Know What to Say

Your resume answers "what have you done." A cover letter answers a different question entirely: "why this role, and why you, specifically." It's the one part of your application where you get to make a direct case in your own voice, instead of a list of bullet points a recruiter has to interpret on their own.

That means the biggest mistake in cover letter writing is turning it into a second resume — restating your job titles and responsibilities in sentence form. If a recruiter can get the same information faster from your resume, the cover letter added nothing.

"I am writing to apply for the [Job Title] position at [Company]" is the single most common opening line in cover letters, and it's also the least useful one — the recruiter already knows what job you're applying for; it's the one they posted, and you're in that file.

A stronger opening does one of two things: leads with a specific, relevant result ("In my last role, I cut onboarding time for new hires from six weeks to two — the kind of process problem I'd love to help [Company] solve as you scale the team"), or leads with a genuine, specific reason you want this role at this company, not a generic one that could be pasted into any application.

Opening (1-2 sentences): a specific hook — a result, or a genuine reason for this specific role/company — not a restatement of the job title.

Middle (2-3 short paragraphs): pick two or three things from the job description that matter most, and for each one, give a real, specific example from your own experience that shows you can do it. Numbers and outcomes are more convincing than adjectives — "led a team of six through a product launch that grew signups 40%" says more than "strong leadership skills."

Close (2-3 sentences): a brief, confident statement connecting your background to what the company is trying to do next, plus a simple call to action — that you'd welcome the chance to talk further. No need to beg or over-apologize for taking their time; a direct, professional close reads as more confident.

You don't need a completely unique cover letter for every single application, but reusing one word-for-word is easy to spot and reads as low effort. A practical middle ground: keep the overall structure and one or two of your strongest examples consistent, but swap in the specific detail from the job description you're responding to, and adjust the opening hook to be genuinely relevant to that company.

If you're short on time, generating a first draft based on your actual experience and then editing it into your own voice is far faster than staring at a blank page — the editing pass is what makes it sound like you and not like a template. TheResume.io's cover letter builder does exactly this: it drafts a full letter from your details and the job you're applying to, which you then adjust rather than write from zero.

One page, ideally 250-400 words. A cover letter that runs longer than the resume it accompanies is a sign it needs editing, not more detail. Keep formatting simple — no need for a matching visual template to your resume, just a clean, readable letter that a human can get through in under a minute.