Real dyed-in-the-wool booksellers – like Sophie and me – can’t lie. Our faces are always a dead giveaway. A lifted brow or curled lip reveals that it’s a poor excuse for a book, and the clever customers ask for a recommendation instead, whereupon we frog-march them over to a particular volume and command them to read it. If they read it and despise it, they’ll never come back. But if they like it, they’re customers for life.