It was only recently that I fully appreciated how the books I read as a child formed me. A pregnant friend asked me about my parenting philosophy and I realised it amounted to ensuring my son would survive a tour of Willy Wonka’s chocolate factory. I never had the money of Veruca Salt’s daddy to indulge his every desire, but I came down hard on chewing gum, gorging on chocolate and, above all, staring at a screen.