‘The production of souls is more important than the production of tanks… And therefore I raise my glass to you, writers, the engineers of the human soul.’ The quote is usually attributed to Stalin, though the phrase ‘engineers of human souls’ most likely came from someone else. Who’s to argue? Purges, executions, deportations – what’s a little light plagiarism in comparison? Whoever coined the phrase, it certainly struck a chord and indeed continues to ring various alarm bells whenever one comes across writers who deliberately set out to influence politics and ideas – and not just the big beasts, the...