What is a thank you letter and when should I use it?

The thank you letter is used in the follow-up after a job interview, but before the hiring decision is made. It can be used after every meeting with the potential employer and should confirm your interest in the job. It shows that you are courteous and makes you stand out. Use this type of cover letter to mention any information you wish to ad after the interview and to clear up any issues. Make sure you address it to interviewer. If you were interviewed by more than one person, you should send thank you letters to the other persons as well.