Describe basic model of the communication process  Describe a structure of a creative agency  What is a creative brief? What are key elements of the creative brief?  What is a media plan?  What is a measure of the number of different audience members exposed at least once to a media vehicle in each period of time?  What refers to the potential audience that might receive a message through a media vehicle?  What is the number of times a receiver is exposed to a media vehicle in a given time period?