Couple of anecdotal factoids for you from a career veteran. #1 The tech industry is small. #2 The circles you move in are smaller. Keep it professional, keep

Couple of anecdotal factoids for you from a career veteran. #1 The tech industry is small. #2 The circles you move in are smaller. Keep it professional, keep it simple, and always resign with decorum. Many others have stated here the purpose of a resignation letter, but I would add that I extend it to verbal too.