How Many Ways To Write The Letter A . Write your return address (and, optionally, your name) in the top left corner. If you do not know the person's gender, you can write out their full name. Tom Holmes exploring the many different ways he can draw letters! The from www.pinterest.com Formal letters have somewhat long, detailed headers which contain both your own personal information and the information of the person you are contacting. The city, state and zip code. Write the name and address of the recipient.