How long should the recommendation letter for my research internship be, and what sections should I ask my recommender to include?
A research internship letter of recommendation should ideally run around 400 to 500 words. It typically includes a header, salutation, introduction, academic evaluation, technical and research skills, professional conduct, a conclusion and a signature. Ask a professor who has directly supervised your work, and tailor the letter to the program.
Your research internship LOR should ideally run around 400 to 500 words, which is enough to show your research aptitude without becoming too detailed. A letter from a professor who has directly supervised your work adds the most credibility.
Recommended LOR Format
| Section | What it covers |
|---|---|
| Header | Recommender's name, designation, institution or organization, and official contact details |
| Salutation | Addressed to the specific institution or program, such as Dear Selection Committee |
| Introduction paragraph | Who the recommender is, their relationship with you and the context, such as a course or project |
| Academic evaluation | Your academic abilities with examples such as conceptual understanding, analytical thinking or project outcomes |
| Technical and research skills | Your proficiency with tools, lab techniques or research methods, and any research findings |
| Professional conduct | Traits like initiative, time management, problem solving and collaboration |
| Conclusion paragraph | Reconfirms the recommendation, restates your suitability and offers further clarification |
| Signature | Recommender's full name, signature and official designation |
Making the Letter Specific
- Connect with the research area: mention research topics, tools or lab projects that match the internship.
- Build trust: a letter that names the program or research mentor adds credibility.
- Avoid a generic tone: focused letters sound intentional, while broad ones miss what selection panels look for.
- Support your story: the letter should echo themes in your SOP or resume, such as an interest in AI for healthcare.
My Advice
Share your resume, your SOP and a short note about the lab or program with your recommender well in advance. The more specific details they have about your work, the more convincing the letter becomes. Confirm any length or format rule on the official program page.
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