Broadcasting royalty @theJeremyVine tells @StephenNolan what he has learnt from his listeners

Jeremy Vine is one of the most famous faces - and voices - at the BBC. He's hosted everything from Panorama to Eggheads. His Radio 2 phone-in show has an audience of 7 million. Now he's turned his hand back to writing, and has a new book out. It's called What I Learnt: What My Listeners Say - And Why We Should Take Notice. He joined Stephen this morning.