An appointment letter is written to inform a person that he or she has been selected for a particular position in an organization. Appointment letter is also called ‘job offer letter’ or ‘job letter’. The employer sends appointment letter to those candidates who have successfully completed the selection process. Through this letter, the employer informs the candidate that he or she has been finally selected and invites him or her to join in the specified post. This letter also states the conditions of the job, its duties and responsibilities.