Content of your CV, family background
Candidates often forget about the function of the letter and they repeat what they have already included in the CV. Or what is even worse, they present their family and write about the jobs of their mother or father. The aim of the cover letter is totally different. You need to include the position you apply for, why you apply and why you want to get the job.
Why do you think you are suitable for the position? You will make a bad impression if you say you are a perfect employee who meets all the requirements and you are the only potential candidate. Professionals do not prefer candidates who praise themselves. To the contrary...
Saying thank you for reading the letter
You should also avoid being too nice. The followings are quite common: “Thank you for reading my letter.” This is the worst option to say goodbye. It can be offending that the candidate thinks this is something people need to say thank you for. This is their task, they obviously read it. By saying goodbye in this way may have an implication that you think the contrary.
Sending a copy
One of the most displeasing things if the cover letter is not tailored for the position and you send the cover letter you used for your previous application. Some candidates even forget to change the company name and the position. This is a huge mistake and it will definitely have a negative effect on the outcome.
Writing several pages
The length of the letters is also a common mistake. Some candidates write several pages to present themselves, their motivation and provide a number of examples to prove they are cut out for the job. It’s good to know that the members of the recruitment staff receive hundreds of e-mails a day. Consequently, they don’t have time to read presentations of 2-3 pages. The optimal length of a letter is no more than a half page.
Sending the letter as an attachment
You also need to be careful when sending the letter. Most candidates send the cover letter in an e-mail or in a separate document. It is recommended however, to send the cv and the cover letter in one document. The first page can be the letter and the second one is the CV. This way HR experts can see the two relevant presentation materials as a whole.