介紹信 introduction letter
outline
P1【寫信目的介紹】P2【個人情況.計劃.原因.期待】P3【感謝.期待】
example
Dear Judy,
Im writing the letter for the purpose of introducing to your Li Ming, one of my best colleagues.
Presently he is studying in Si Chuang University. He will graduate in July and go to America for further study. As it will be the first time for him to study aboard, he will most likely encounter a variety of difficulties. Therefore, he hoped to enjoy your guidance in some ways. I would be most grateful if you could kindly offer help.
Thanks a lot for paying due attention to the letter. Im looking forward to your reply.
Yours truly,
Li Ming.