At times, it feels as if we’re constantly bombarded with advertising. Yet with DVR’s, ad-blocking software and other tools, we’ve never had more ways to avoid being marketed to. Former advertising executive Andrew Essex joins us to talk about how advertisers are rethinking how they reach consumers, which he writes about in “The End of Advertising: Why It Had to Die, and the Creative Resurrection to Come” (Spiegel & Grau).