A well-written cover letter can make the difference between an ignored application and an interview. Here's the structure, tone and mistakes to avoid.
Many people spend hours polishing their CV and then write the cover letter at the last minute, in a rush. Yet it's often the first text a recruiter actually reads, because it tells who you are and why you're applying for that specific position. An effective cover letter doesn't repeat the CV, it completes it: it explains your motivations, highlights the link between your background and the position, and gives an idea of your way of communicating. In this article we'll see how to build it step by step, without magic formulas but with concrete tips you can apply right away.
Why the cover letter still makes a difference
Many candidates think the cover letter is just a formality, a text no one really reads. Actually, especially when there are many applications, this document is exactly what allows the recruiter to quickly understand if it's worth looking further into your CV.
The CV shows what you've done, the cover letter explains why you did it and why you want to take that specific next step. It's the space where you can link your experience to the specific needs of the job ad, something a list of work experiences alone cannot do.
That's why it's worth investing time in this text, even when sending several applications in the same period. A carefully written letter also communicates attention and seriousness towards the company you're addressing.
The structure of an effective cover letter
A good cover letter follows a simple and recognizable structure, which helps the reader quickly find the information they're looking for.
Header with your contact details and the company's, if you have them An opening that clearly states which position you're applying for and how you learned about the offer A main body, usually two or three paragraphs, where you link your experience to the role's requirements A closing that reiterates your interest and invites contact, for example for an interview Greeting and signature
There's no need to lengthen the text to seem more thorough: a well-organized cover letter that fits on one page is much more effective than a long and scattered text. The reader should be able to grasp the main point from the first lines.
The right tone: neither too rigid nor too informal
The tone of the cover letter says a lot about you, sometimes more than the words themselves. A text that's too formal and impersonal risks sounding cold and generic, while a too casual tone can convey a lack of seriousness, especially for structured roles.
The right balance is found by writing in a direct and natural way, as if you were explaining to a real person why that role interests you. Avoid stock phrases like "I am a dynamic and motivated person" without any concrete example to back it up: it's much more effective to show motivation through specific facts related to your experience.
The length of sentences matters too: short, clear sentences are easier to read than elaborate constructions. Read the text out loud before sending it, it will help you understand if the tone sounds natural or artificial.
The most common mistakes to avoid in a cover letter
Some mistakes recur often and risk weakening even an application that's solid on paper.
Copying the same text for every application without adapting it to the specific ad Repeating word for word what's already written in the CV, without adding value Focusing only on what the position can give you, instead of what you can bring to the company Using language that's too generic, without concrete examples related to your experience Leaving typos or spelling mistakes, which give an impression of carelessness Writing a text that's too long, risking it won't be read to the end
Many of these mistakes can be avoided simply by re-reading the text calmly, perhaps a few hours after writing it, or having someone else read it before sending it.
Personalizing the cover letter for each application
One of the secrets of an effective cover letter is personalization. It doesn't mean rewriting everything from scratch every time, but adapting the key points to the ad and, when possible, to what you know about the company.
Before writing, carefully re-read the ad and identify the two or three skills or experiences the company seems to be looking for most. Then build the body of the letter around these points, bringing concrete examples from your background.
If you already know something about the company's activity, you can briefly mention it to show that you haven't sent the same letter to dozens of different addresses. Even a small specific detail can make a difference in how the reader perceives it.
How to close the cover letter convincingly
The final part of the cover letter is as important as the opening, because it's the last thing the reader takes away before deciding whether to contact you.
Avoid generic closings like "I look forward to hearing from you" without any addition. It's better to restate in one sentence why you believe you're a good fit for the role and indicate your availability, for example for an introductory interview.
A warm but professional greeting, followed by your signature with first and last name, closes the text neatly. If you send the letter as an attachment along with the CV, make sure the file name is clear and recognizable.