A strange feeling comes over you when you spot a stranger reading your favourite book. Your walk gets quicker, your upper lip might even develop a certain sheen and you find yourself peering over their shoulder, desperate for them to peel their eyes away from the page for long enough for you to start a conversation about *that* book. 

Excitable indistinct squawks ensue. 

The Seven Husbands of Evelyn Hugo, A Little Life, The Book Thief, White Teeth, Normal People, Everything I Know About Lo...