Content

• In your thank you letter you should express appreciation for the interviewer's time, remind the interviewer what services you have to offer the company, repeat your strengths that you mentioned in the interview, tie up any loose ends, address any questions which did not go well during the interview and reaffirm your interest in the job and the company.
  
  

When to Send

• You should send a thank you letter to the interviewer within 24 hours of the interview. The idea is to reaffirm the good impression that you made in person and to remind the interviewer that you are a strong candidate who is serious about the job. Sending a thank you note immediately will help to keep you in the interviewer's thoughts and it will ensure that your note can be factored into the candidate selection process.
  
  

Email

• It is generally considered acceptable to email a thank you note, especially if the company you are interviewing for prefers email correspondence or operates in a paperless environment. However, a typed or hand-written note is considered more personal and will help you to stand out from the other candidates.
  
  

Timing

• Even if you have already been offered the job, or the decision will be made before your thank you note will arrive, it is always a good idea to send a thank you note anyhow. Even if you are not selected for the position you interviewed for, a good note can leave a strong impression and you may be contacted for future interviews.