A type of professional business letter, a reference letter is written by a previous employer, professor, colleague or other individual recommending another individual for a position or educational opportunity. A reference letter is exactly what the name implies--a letter describing an individual's strengths. One of the most important reference letter elements is the heading, which when done correctly, indicates a professionally written letter.
Type your return street address in the top left of the page. Ensure your left justify the text. For example: 1234 Main Street would be appropriate here.
Type the name of your city, state and zip code on the next line. Continue to left-justify the text. An example might be Racine, WI 53405.
Type the date you wrote the letter. Continue to left justify this text. An example of a date would be March 23, 2011.