"Mark Barber "After graduating from the University of Life, Mark spent 18 years as a media planner in a variety of media agencies before joining the Radio Advertising Bureau in 2001. He has been using radio as an advertising medium since 1983, during which time his perspective has moved from audience cost-per-thousands to the communication benefits of the medium. Mark's previous contributions to radio literature include "Understanding Radio, the Brand Conversation Medium" and "Radio Advertising Effectiveness for Dummies," In his spare time, he supports Charlton Athletic, is teaching hi...