How can one have an effective introduction in a letter of advice?  

Expert Answers
Lorraine Caplan eNotes educator| Certified Educator

Writing a letter of advice is, in many ways, no different from writing an essay.  An introduction should state the purpose of the letter and provide a brief outline of the advice to be offered.  Since advice is not necessarily welcome, an introduction to a letter of advice should probably be as diplomatic and persuasive as possible.  For example, if I were writing to a friend whose drinking seems to me to be a bit out of control, I might begin like this:

Dear Mary,

     Because you are such a dear friend, I always care about your mental and physical health.  I have noticed that when we go out for dinner, you have at least three glasses of wine, and this concerns me for a few reasons.  First, I worry about your driving.  Second, I worry because I know you are trying to lose weight and these are empty calories, and third, I am concerned about the long-term consequences for your body and your mind. 

I am not sure whether you are talking about writing a letter of personal advice, educational advice, or business advice, but the principles remain the same, no matter what the subject of the advice is. One way to get a sense of this might be to look at some published letters of advice, for example, the one described in the link I have provided.