Background: CS undergrad

I have 3 Letter Writers whom I have done in-depth research with (published, to-be published work). But I have not performed any coursework with any of them because 2 of them are outside my university and the 1 within my university is in a different department.

I have my "class advisor" whom I have done minimal research with and attended 4 of her courses (mostly programming and 1 Software Theory Class).

Question: Should I ask her to be my 4th Letter Writer?

Many applications say that they will allow a 4th letter but one needn't submit them. Hence the question.

Do LOR writers need to be someone who's taught you a class? I am aware of the similar question here but this is specifically in regards to the 4th letter writer for course work.


If the fourth letter will strongly support your application and is from someone who can fairly judge your work, then it would be better to send it than not. But a lukewarm letter won't help you and might dilute stronger letters. You have to judge that.

The letter readers will be looking to make a prediction of success for accepted candidates.

  • Thank you for the suggestions!
    – Academic
    May 19 '21 at 2:34

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.