On today’s program, John and Lynn speak with Christopher Gonzales of Knack, a programmatic advertising platform that pairs brands with individual social media influencers to create and promote targeted user generated advertisements on social media. The second guest on the program is Winifred Gallagher, author of How the Post Office Created America: A History. Winifred Gallagher presents the history of the post office as America’s own story, told from a fresh perspective over more than two centuries.