human
How do I write a professional letter of recommendation?
assistant
1.  Start by researching the person you are writing for and their background, qualifications, and experience.
2.  Write a clear and concise introduction that explains why you are writing the letter and what your relationship is with the person you are recommending.
3.  Use specific examples to support your claims about the person's skills, knowledge, or abilities.
4.  End the letter by thanking the person who you are recommending and expressing your appreciation for their work.