Just curious out there if many of you PI applicants also attached a cover letter with your resumes? My son asked me to ask you all! He has not previously attached a cover letter and has not had much luck with the process. Last fall he was stuck in interview stage til last day of notifications then went NLIC. He is currently in progress for 2 engineering PIs. He's just wondering if where he is going wrong in the process is a lack of cover letter. In the application process he says they only ask you to attach a resume, no mention of cover letter, so he has never included one. Now he's second guessing himself if he should've "gone the extra mile" even though it wasn't required. Thanks in advance!