101 Ways to get the Best out of Radio Advertising
My friends at the Radio Advertising Bureau of South Africa have produced an outstanding field guide to radio advertising called, appropriately enough, "101 Ways to Get the Best out of Radio Advertising."
It's a project I am very proud to have participated in. Many of the points are as relevant in the US as they are abroad.
It is useful, smart, creative, and visually inspired.
You should download it.