It is better to start writing a cover letter once you have prepared your CV. This will allow you to determine what elements should be described in your cover letter without repeating what's in your CV.
These general rules will help you to include the most important features of a good cover letter:
- Be direct. Your cover letter does not need to include and explain everything concerning your professional life. It should focus on the most important elements of your work experience and describe them clearly in relation to the position you're applying for.
- Be positive. Show enthusiasm and willingness to work. Your cover letter should illustrate eagerness and motivation towards employment.
- Be polite. Remember that you are addressing a possible future employer. Do not forget about maintaining polite forms, correct spelling, etc..
- Be professional. Keep in mind that this is a professional exchange. Not only the manner in which you write your letter, but also its content indicate your level of professionalism. Remember to focus only on professional issues, without in-depth analysis of your current life situation.
- Create an interest. Make your content and style of writing interesting. A cover letter should encourage an employer to want to meet you not make them bored.
- Be concise. Remember not to repeat the content from your CV. The purpose of a cover letter is to complement your CV, highlighting your strengths and experience.
- And, be yourself. Try to write in your own style and do not try to replicate text from other sources.