The conventional cover letter — three paragraphs restating your resume, ending with “I look forward to hearing from you” — gets skimmed for 10 seconds and closed. But a genuinely good cover letter can be the reason you get an interview when your resume alone wouldn’t have made the cut. This guide will show you how to write one worth reading.

What a Cover Letter Is Actually For

A cover letter is not a summary of your resume. The hiring manager already has your resume. A cover letter should answer two questions that a resume cannot:

  1. Why do you specifically want this job at this specific company?
  2. What is the most compelling thing about you as a candidate for this particular role?

If your cover letter could be sent to 50 different employers unchanged, it isn’t doing its job.

Before You Write: Do Your Research

The best cover letters are specific. Before writing, spend 15–20 minutes:

  • Reading the job description carefully and highlighting the 3–4 most important requirements
  • Researching the company: What do they do? What’s their mission? What recent news or projects have they announced?
  • Identifying one specific thing that genuinely excites you about the company or role

This research isn’t wasted — it directly becomes the content of your letter.

The Structure

A strong cover letter has four parts:

1. The Opening (2–3 sentences) 2. The “Why This Company” paragraph (2–4 sentences) 3. The “Why I’m the Right Fit” paragraph (3–5 sentences) 4. The Close (2–3 sentences)

Total length: 250–400 words. No longer. Hiring managers are busy.

Part 1: The Opening

Don’t start with “My name is [X] and I’m writing to apply for the position of [Y].” That’s wasted space. They know who you are and what you’re applying for — it’s attached to your application.

Instead, open with something that immediately signals why you’re interested or why you’re relevant:

Weak: “I am excited to apply for the Marketing Manager position at Acme Corp.”

Strong: “When I read that Acme Corp is expanding its direct-to-consumer channel in Southeast Asia, I immediately thought of the two years I spent building APAC partnerships at my current role — and why I’d jump at the chance to work on this challenge at your scale.”

The strong opening is specific, connects your background to their situation, and creates a reason to keep reading.

Part 2: Why This Company

This is where your research pays off. Write 2–4 sentences explaining why you specifically want to work at this company — not a company like it, but this one. It should be something you could only write about this employer.

Mention something specific: a product you use and admire, a project you read about, the company’s approach to a problem in the industry, or their culture and values if they genuinely align with yours.

Generic: “Acme Corp is a leader in its industry with an innovative approach to technology.”

Specific: “Your recent case study on using LLMs for customer support triage was exactly the kind of creative problem-solving I find most interesting — and it’s why I’ve been following your engineering blog since early last year.”

If you can’t find anything specific to say, that’s useful information: maybe this isn’t the right job for you, or you need to do more research.

Part 3: Why You’re the Right Fit

Now connect your background to their needs. Choose the most relevant aspect of your experience — not everything on your resume, just the most compelling thing for this specific role.

Be specific and use numbers when possible:

  • Instead of “I have experience managing teams,” write “I led a team of eight engineers through a platform migration that shipped 3 weeks ahead of schedule”
  • Instead of “I’m a strong writer,” write “I’ve grown a B2B newsletter from 400 to 12,000 subscribers over 18 months”

If you’re changing careers or lack direct experience, acknowledge it briefly, then pivot to what transferable skills you bring and why you’re motivated to make the transition.

Part 4: The Close

Keep it short. Express enthusiasm for a conversation, and don’t use clichĂ©s like “I welcome the opportunity to discuss my qualifications” or “I look forward to hearing from you.”

A simple, direct close works: “I’d love to talk about how my background in X could help with Y. Happy to share more details at your convenience.”

Sign off with “Best regards” or simply “Thank you” — not “Sincerely” (dated) or “Yours faithfully” (odd tone).

Formatting Tips

  • Use a professional font (Calibri, Georgia, Garamond) at 10–12pt
  • Match the formatting of your resume: same header with your name and contact info
  • Use plain language — no jargon, no buzzwords
  • Proofread carefully — a typo in a cover letter is disqualifying for many roles
  • Address the hiring manager by name if you can find it. “Dear Sarah Chen” is warmer than “Dear Hiring Manager.”

The Hardest Truth

Writing a truly compelling cover letter takes 30–45 minutes per application. That’s why most people don’t do it. That’s also why, when you do it, you stand out. For roles you genuinely want, the investment is worth it every time.

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