This week, we introduce a guest writer, Tom Yobage, who also happens to be Alison's father. Beginning in the Mad Men era of the 1960s, Tom worked on Madison Avenue for four decades at Doyle Dane Bernbach. The advertising agency started the Creative Revolution with its breakthrough campaigns for Volkswagen ("Think small." "Lemon.") and Avis ("We try harder.") At Doyle Dane Bernbach,Tom worked as a copywriter and creative director. The stories he can and will tell about the ad campaigns created by Doyle Dane Bernbach deserve their own blog, but we’ll start with the clypd blog. What follows is a story he shared with Alison earlier this week, about the power of celebrity in advertising.