A recommendation letter is a formal endorsement of someone’s qualifications, character, and achievements, written by a supervisor, teacher, or colleague. It adds credibility to an application by providing evidence from a trusted source. The strongest letters are specific, balanced, and supported by measurable outcomes, demonstrating not only what the candidate did but how they did it and why it matters. Admissions committees and employers look for context, consistency, and concrete results.
State your relationship and time frame early to add credibility. Focus on specific examples that demonstrate results and character.
Summarize the candidate’s top strengths in one sentence and restate your confidence. A concise, positive close helps readers remember the most important qualifications.
When possible, add outcomes such as awards, metrics, or promotions to quantify achievements. This strengthens credibility and helps readers understand impact at a glance.