Bob Garfield, co-host of NPR’s On the Media, is no stranger to advertising. For years, he critiqued TV commercials for the magazine Advertising Age. He is, however, a greenhorn when it comes to mob life. So it’s an exciting surprise that Garfield has written a book that involves both worlds. His new novel, Bedfellows, is about a Madison Avenue refugee thrust into a mob war between the Russians and a Brooklyn crime family making some changes because of the global recession. We’ll talk with Bob on Wednesday about his “comic mob thriller” and what, if anything, it has to do with his day job.