Tobacco Advertising

What are the laws regarding tobacco advertisements.  Why do you only see them in magazines and not on television anymore.  What all can and can't you do when you are advertising tobacco products.  Who are the targets of certain advertisements and for certain tobacco products.  Where are different products advertised at.  These are all questions I have and would like to answer with this paper.  What are the effects of different advertisements.  What kinds of pictures in advertisements work and why do they work.  There are so many different cultural images that are involved in advertising and there are many more different stereotypes involved in these cultural images.  I would like to analyze these different aspects so that I can understand why they do things the way they do.