Many jobs you apply to may require you to have at least one letter of recommendation. Even if the company does not require one, sometimes including one with your resume and application will give you a more professional impression. Employers take these letters seriously and so should you!
Letters of Recommendation should come from former teachers, counselors, coaches, advisors, managers/supervisors, pastors, and/or other youth organization adults. Not a relative. The person you ask should have good writing skills and a good idea of your work skills. When you ask, you should give the person at least 2 weeks to complete the letter. You should also provide them with what information you would like them to share. (A resume or a list of things you have done will help.)
To help you learn more about what to expect with a letter of recommendation, you will write one for yourself, from a current co-worker or manager. Use the same block business letter format as the cover and thank you letters.
In the first paragraph you will mention how the co-worker knows you and for how long. Also mention how you are pleased to be giving this recommendation and something positive about the person (you.) The next paragraph goes into more detail on what the person did (or does) to deserve this recommendation. The last paragraph sums up the first two paragraphs and mentions where to contact you if you have any questions or concerns.
Click on link for a sample letter of recommendation.