The author of five New York Times bestsellers and one of the world's most successful non-fiction writers, Malcolm Gladwell speaks to Paul Smith down the line from LA. Malcolm talks about the themes behind Blink, Outliers, David & Goliath and on writing his new book. Plus he selects five objects that have inspired his chart-topping podcast Revisionist History. #PenguinPodcast (Photo: Bill Wadman)