There’s a standard professional recommendation letter sample available here, and there are documents that go into more detail for co-workers, graduates, scholarships and teachers.

— Recommendation letter samples. What Is a Letter of Recommendation? A letter of recommendation is a formal document that discusses someone’s strengths and suitability for a job position.

A letter of recommendation is a formal document that discusses someone's strengths and suitability for a job ... Make sure that you personalize the samples to make a recommendation letter your own.