Business communication at work

We start talking about Business communication at work -

I feel very good and I was very carefully listening to what Professor tell us about cover letter because those things we will use everytime, it is very important to know how to write the cover letter.
We learned the purposes of cover letter, the questions we need to answer before starting to write a cover letter, also we learned the three parts that are included in effective cover letter.

(from Business Communication at Work by Marilyn Satterwhite and Judith Olson-Sutton pp. 480-487)