How Can I Write Introduction Letter

I am going to graduate this year, I want to apply to a graduate school overseas. But as I am not used to writing letters in English, not to mention to write to a profressor, would anybody please tell me how to write a letter to a professor?

Just wondering how to write an introductory letter and if I could get a sample...that'd be great

How do I write a good introduction letter in the right format, to introduce my new products. Help is required. Thanks.

Hi all I need some help to write a introduction letter. I just started as a loan officer and I also do insurance on site! I want to write a letter to all of my insurance client to tell them about my new career and the new team that I m working with! But I have serious language problems! HELP!:(

I am going to introduce my company and products to a potential customer Please show me a sample of FORMAL introduction letter Thanks a lot!