Familiarize yourself with the position. Get a copy of the job description, if you can, and talk to the person you will recommend. If you know the intended recipient of the letter, ask them about the position as well. The more you know about the position, the better you will be able to tailor your letter to suit the needs of both parties.
Writing a letter of recommendation can be intimidating, especially because the person you’re writing it for is counting on you to pull through for them. Fortunately, there’s a general formula you can use to write a letter of recommendation that is both professional and effective.