This kind of letter is written to give one’s employer, a prior notice that one would be quitting the job. In this letter, you should state the position you are resigning from and the company’s name, the day you would be leaving the job. Thank your employer for the opportunity he/she has given you. Also, appreciate the employer for the things you have learnt from the work. Also, state that you would wrap up your work diligently and that you would be glad to help with the transition process. This letter is mostly given to the employer one or two weeks before resignation.