Dear Sir/Madam:My friend George would like to apply for the position you are offering as a part-time librarian. It is my great pleasure to recommend him to you. As a well-behaved college student, George is a conscientious and considerate person, who is fond of reading and writing during his spare time. He is very talented and diligent at study, and is awarded scholarship every year in college. He can speak great English as well. I am sure he is perfect for this position in the library.I would much appreciate your consideration. Should you need any more information, please feel free to contact me. Sincerely, XXXFeb. 24, 2011注意，此类应用文应简洁明了，直接写明目的就好。

不知道是什么级别的应用文，随便写了点以供参考，希望对您有帮助。