How to Get Strong Letters of Recommendation for College

Recommendation letters are one of the few parts of your application written by someone else, which makes them both powerful and partly out of your control, but only partly. The strength of your letters depends heavily on choices you make, whom you ask, how you have built those relationships, and how you support your recommenders. Here is how to get letters that genuinely help.

Choose teachers who know you, not just your grades

The most common recommendation mistake is choosing recommenders by grade rather than by relationship. Students assume they should ask the teacher whose class they aced, but a teacher who gave you an A but barely knows you will write a generic letter that says little, while a teacher who knows you well, even from a class where you earned a B, can write a specific, vivid letter about who you are as a thinker and person. Specificity is what makes a recommendation powerful: admissions readers value a letter full of concrete detail and genuine knowledge of you over a glowing but hollow one. So choose recommenders who can speak about you specifically, your intellectual curiosity, how you engage, who you are, which usually means teachers you connected with, contributed to, and who saw you beyond test scores. Generally, choose teachers from junior year (recent and substantive) in core academic subjects, ideally ones relevant to your interests, but above all ones who know you.

The insider view: relationships built over time produce the best letters

I interview for MIT, and the difference between a strong and a weak recommendation usually traces back to the relationship behind it, which means the work of getting strong letters starts long before you ask. The students with the best letters are those who genuinely engaged with their teachers over time: participating thoughtfully, going to office hours, showing curiosity, building a real rapport. A teacher who has watched you think, struggle, grow, and engage has rich, specific material to draw on, and writes with the genuine enthusiasm that readers can feel. A teacher who knows you only as a name in the gradebook has nothing specific to say, however high your grade. So the single best thing you can do for your future recommendations is to build authentic relationships with your teachers throughout high school, not as a calculated move, but by genuinely engaging, which has the happy byproduct of producing teachers who can advocate for you powerfully.

This is why recommendations cannot be fully manufactured at the last minute, the relationship has to exist, but you can still strongly influence the quality of the letters through how you ask and what you provide. Ask early, ideally before the rush, giving recommenders several weeks (or asking in the spring of junior year for fall letters), because a rushed letter is a weaker letter and teachers writing many recommendations appreciate lead time. Ask in person where possible, sincerely, and make clear why you are asking them specifically, which both honors them and signals the relationship. A teacher who feels genuinely chosen, and who has time, writes a better letter.

Finally, give your recommenders the raw material to write a specific, strong letter by providing a brag sheet: a summary of your accomplishments, activities, goals, the colleges and fields you are pursuing, and perhaps reminders of specific moments or work from their class that they might highlight. This is not telling them what to write; it is giving them the details and context that let them write specifically and align their letter with your story. Teachers, especially those writing many letters, genuinely appreciate this, and it measurably improves the specificity and relevance of what they produce. Strong letters come from the combination of a genuine relationship, a thoughtful ask, and good supporting material, all of which are within your influence.

What this means for you

1. Choose recommenders who know you well, not just high-grade teachers.
2. Build genuine relationships with teachers throughout high school.
3. Ask early and in person, making clear why you chose them.
4. Provide a brag sheet with accomplishments, goals, and context.
5. Favor recent, core-subject teachers who can speak specifically about you.

A student I interviewed

A student I interviewed had built a genuine relationship with her junior-year history teacher, not strategically, but because she loved the class and engaged deeply, often staying after to discuss ideas. When she asked him for a recommendation, gave him a brag sheet, and reminded him of a project she had been proud of, he wrote a letter so specific and enthusiastic that it became, by her sense and mine, one of the strongest parts of her application. It conveyed exactly who she was as a thinker, in a way no high-grade-but-distant teacher could have. The letter was powerful because the relationship was real, and because she supported him in writing it well.

Mistakes students make

• Choosing recommenders by grade rather than relationship.
• Asking teachers who do not really know them.
• Asking at the last minute, leaving no time for a strong letter.
• Not providing a brag sheet or context.
• Neglecting to build teacher relationships earlier in high school.

What this means for your application

1. Build authentic teacher relationships over time.
2. Choose recommenders who can write specifically about you.
3. Ask early, sincerely, and in person.
4. Support them with a thorough brag sheet.
5. Prioritize specificity and genuine knowledge over grades or prestige.

Frequently Asked Questions