We mail your letters using the USPS mail system. Your first letter ships within 3 business days and takes 2-5 business days to arrive after shipping (5-8 business days total). After that, your remaining letters are mailed on the 2nd and 4th Fridays of each month with delivery within 2 weeks for US orders or 6 weeks for international orders. You'll start with the first letter so you won't miss any parts of your story!