Summary: Journalist Daniel Finkelstein, and writer Jill Paton Walsh, reveal their favourite books to presenter Harriett Gilbert. Daniel Finkelstein, recommends Influence: the Psychology of Persuasion by Robert B Cialdini. Jill Paton Walsh's choice is What Money Can't Buy: The Moral Limits of Markets by Michael J. Sandel. And Harriett Gilbert's pick is The Van by Roddy Doyle. Produced by Beth O'Dea
