I am going to apply for grad school starting this December. I have heard that an LOR is pretty essential in the process. I have a few professors I can approach. But my question is: how do you present an LOR? By that I mean, should it be sealed in an envelope, giving the impression that I have not peeped into it, before submitting it for grad school?
What if my professor mails me an LOR instead of writing it? Do I take a printout and do the above?
Also is there a particular format I should be aware of? And what else should be there on the letter, apart form the content itself, college stamp/seals or anything of the sought?
Are there any other formalities that I should be concerned about?