— from the PI’s desk
Why this letter matters so much
As an undergrad, one of the reasons you devoted so much time to a research experience was to earn an epic letter of recommendation--one that speaks to your strengths, resilience, character, self-reliance, cultural competencies, ability to solve problems, and contribute to a group effort.
This letter will be a comprehensive endorsement of your graduate, medical, preprofessional school application, or for a job complete with specific examples that influenced your PI's opinion. This one letter has the potential to outweigh all other letters from a professor whose class you attended, or from someone who oversaw a volunteer program you participated in for a semester.