The post-interview Thank You letter is more than a courtesy; it is yet another chance for you to put your name in front of the hiring manager and reiterate your qualifications, what you can do to help them, your interest and enthusiasm for the position and the company. They will usually tell you they will be making a decision is a week or two. Call the hiring manager (not HR!) a day or two within the expected decision date. Again, you just want to reiterate what you can do to help them and your interest. This article is a . You can help My English Wiki by expanding it.