Who Should I Request To Make Me A Recommendation Letter?

The Letter Writer
Choose who will represent you wisely. No one person can represent you accurately in all areas. Find someone who knows your strengths in the areas you need to satisfy the requirements of a particular employer or admissions board. Schedule a convenient time for you and your employer or advisor to meet. Review the requirements and expectations of the recommendation letter. This process helps the person who is writing the letter answer questions, clarify points that may need elaboration, and point out additional information that may be required. Make this process easy by providing all of the information needed so that you can obtain an accurate and positive recommendation.
When you request a recommendation, communicate your needs in a straightforward way. Explain what you are applying for and ask if the person can provide you with a good recommendation. If someone exhibits any uneasiness about providing you with a strong recommendation, be polite, thank him or her for their time and then look elsewhere. Choose someone who:
can provide a well-written letter
knows you well enough to be credible
thinks highly of you and your abilities
holds a respected position
Keep in mind that the recommender is doing you a favor and has a busy schedule with other commitments. Make sure you allow enough time so that he or she can provide you with a well-written and effective letter.