Your letter must give the impression that you are applying to only this company because the position here is exactly what you seek.
Many mistakes occur here as the British and American notations differ.
While the month is placed first and is followed by the date in the US version, the British notation gives the date first and the month afterwards.
Busy people don't want to read long letters from people they don't know.
The cover letter should be no more than one page long, written in standard business letter format.
Every time you send out a résumé, you'll need to have a great cover letter to send along with it.
It's a good idea to customize your cover letter for each job you're applying for.Other things to keep in mind: September 12, 2018John D.Smith Human Resources Manager Mom's Marmalades, Inc.123 Main Street New York, NY 10000Dear Mr.Use the impersonal salutation only if you absolutely cannot find a suitable contact person.In the latter case, the following alternative greetings are possible: The salutation, ‘To whom it may concern’, is not recommended.To avoid such misunderstandings, it is recommended to combine numbers and words in your notation. The recipient’s details must be stated in full, including the full name of the contact person.All the accessories of the company name and the designation of the contact person must be provided. If you know the name of the contact person, his/her name and surname must be included in the greeting.Don't use a tiny font just to fit everything on one page; 10- or 12-point type is best.Write clearly and avoid hyphenated words at the ends of lines.Unless you’re submitting your résumé and cover letter on a job submission website, chances are the employer has asked that you email your application directly.In that case, you can either attach your cover letter as a PDF to the email as you would your résumé, or you can include your cover letter in the body of the email.