To Whom It May Concern:
"It is a pleasure to recommend to you (name), a former student of mine at (name of university)."
"I an very happy to have this opportunity to recommend (name), who is presently applying for admission to your graduate (or undergraduate) program in (name of program)."
"I understand that (name) is applying for admissions to your graduate (undergraduate) school, and has requested that I write this letter of recommendation for her/him."
"In my capacity as professor at xxxx University, I have known xxx for three years, as both his/her advisor and professor."
"(name) took two of my courses during the 1984-85 academic year, as follows; 'xxxxx' and 'xxxxx'."
"(Name) was enrolled in three of classes from September 1984 to June 1986 'xxx' and 'xxx'."
"In my class(es), (name) did excellent work. She always listened attentively, participated activitely in class, and handed in very good written assignment."
"In particular, his/her research paper on (topic) was of exceptionally high quality, and showed that s/he fully understands and has a strong background in his/her field."
"When (name) held the position of (job title) in this company s/he was one of my best employees. His/her job responsibilities included (describe them), and s/he carried out his/her duties with exceptional skill and professionalism."
"S/he not only did his/her own work, but also helped other employees, and made many valuable contributions to the efficient running to our firm."