Here are 3 examples that you can use for resignation letter as Assistant Professor -. It's best to tell your boss that you're moving on to the next step in your career "facetoface or over video call," with at least two weeks' notice.Resignation letters should use the formal greeting: "Dear". The first sentence in the letter should state that you are resigning and when. Here are examples of resignation letters for different levels and professions, each tailored to a specific personal reason. Here are 3 examples that you can use for resignation letter as Visiting Assistant Professor -. I am writing to formally tender my resignation from my position as an Assistant Professor at Crestwood High School, effective June 20, 2053. Please accept this resignation letter as formal notification that I am leaving my academic role. I am writing to inform you that I'm resigning from my position as Assistant Professor of Gender Studies, effective today. Dear Melanie Clark, I am writing to resign from my position as (insert job title).