How do Professors feel about writing recommendation letter? Just curious about how professors feel about having to write recommendation letters? Is it a chore for them? Or do they actually enjoy writing them? Or is it more of neutral.

I am in a situation of applying to various graduate schools. Last year I only applied to one school and was rejected. This year I am thinking of applying to more schools so as to increase the chance of being accepted. I feel a bit "guilty" about having to ask my supervisor to write 5 separate letter of recommendations. Would it take up too much of their time?

That said, I don't really have any other choice since the recommendation letters are pretty much compulsory.
Although I'm not a professor, my position has a lot of similarity and I have often been asked to write recommendation letters.  My reaction has been a mixture, depending on who is asking for me to write the letter:


Students who I like and respect: "Sure, I'll be happy to.  What are the aspects of your work that you'd most like to have emphasized?"
Students who I haven't got a strong opinion on: "I'm not sure that I know your work well enough to write a strong letter.  If you really need me to, I can, but I think you'd be better served by getting somebody who knows you better."
Students who I have been disappointed in: "I'm sorry, but I don't think that I would be a good person to write the type of letter that you need."


You only want letters from the first type, who will happily sing your praises.  And for a student like that, it's no burden at all: I'm going to want to push your career forward, because I'm hoping I'll get to see somebody who I like prosper, and maybe even return to work with me as a colleague in the future.

As for the multiple letters question: don't worry about it unless you're applying to like 20 schools.  If the programs you're applying to are similar, they're probably just going to be writing just one template letter about their experiences and filling in a couple of blanks to customize for the institution.  Now certain institutions have terrible forms that will make it a pain to send that letter, but that's hardly your fault, and your recommender will be used to it...